The pedigree on the right shows the inheritance pattern for an X-linked recessive disorder. The mother of the individuals circled in pink is not shown on the pedigree. Based on the phenotypes of these individuals and their father, what are the possible genotypes of their mother? Check all of the boxes that apply
Answers
Answer:
The right answers are: XAXA and XAXa
Explanation:
A genetic disease is caused by an X-linked recessive inheritance when:
1. the gene present on the x linked chromosome, involved in the mutation.
2. The presence of both mutant alleles is necessary for the disease to be expressed in a female.
As per the image, the mother has always transferred a healthy allele (XA) so the answers are the genotypes carrying this allele.
Thus, the right answers are: XAXA and XAXa
Related Questions
help me help me help me help me please give me the correct answer pleaseeeeee help me
spectral diffusion causes light to scatter
true
false
Answers
Answer:
true
Explanation:
diffused light is scattered light
Write a paragraph of 150 words on the subject ‘different ways to protect ozone layer and prevent emission of hazardous gases’ for hindi
Answers
Answer:
There are a few different steps we can take to protect the ozone layer. As you know, the ozone layer is the layer that protects us from the sun’s powerful UV rays and it also protects us from other harmful things roaming in space. The first thing we can do to protect the ozone layer is reduce the use of natural gases. The gases produced from the natural gases had torn holes in the ozone layer. A way to prevent emissions of hazardous gases Is to switch to renewable energy. Renewable energy is not only easier to access and replace, solar panels and wind energy dont give off harsh and hazardous gases that mess with the ozone layer and the climate.
Explanation:
I don’t know how Many words that is. You can add to it if you feel the need to. I don’t know Hindi, maybe you can translate it on google?
What are the examples of aerial stem modification.
Answers
Answer:
Subaerial stems are the stems that do not rise up but grow just above the ground. As a type of asexual propagation, these subaerial stolons, also called runners, often develop roots and leaves from their nodes. Some pond plants have subaerial leaves as well as submerged leaves (water plantain, flowering rush)
Which two large landmasses formed when Pangaea first started to separate?
Africa and Europe
O Europe and Laurasia
Gondwanaland and North America
Laurasia and Gondwanaland
Answers
Laurasia and Gondwanaland were formed when Pangaea first started to separate.
What are landma-sses?A landmass is a very large area of land such as a conti-nent.
Landmasses include:
super continents
continents
Is-lands
There exist four major continuous landmasses on Earth:
Americas,
Ant-arctica, and Australia.
Afr-o - Eurasia,
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In what ways are fats and steroids similar to each other, and in what ways are they different? Fats and steroids are both hydrophilic lipids, but fats help with metabolism while steroids provide insulation. Fats and steroids are both hydrophobic lipids, but fats serve as energy while steroids serve as hormones. Steroids contain a four-carbon ring while fats consist of glycerol and fatty acids, but both are proteins. Steroids help with transport while fats store energy, but both are proteins.
Answers
Answer:
Fats and steroids are similar because fats & steroids are both lipids & are both hydrophobic. They are different because fats store energy for molecules & steroids function as a messenger around the cell membrane.
Explanation:
Although hummingbirds and house flies both use wings to fly, this similarity is not based upon closely shared ancestry but rather on evolution and adaptation as a result of survival and reproduction in a given environment. The term best describing such a phenomenon is
Answers
Answer:
Analogous Structures
Explanation:
Defintion of Analogous Structures: body parts that share a common function, not structure. I wish there was multiple choice but hopefully this helps.
which best describes the earliest land plants? A. had long, thick leaves B. lived in close contact with water C. grew to be very tall D. produced large, thick seeds
Answers
B. lived in close contact with water
Explanation:This is because we now that the area near water is very fertile so it most probable that the earliest trees grew there and slowly spread to the other parts
The earliest land plants can best be described as having been in intimate touch with water. So, the correct option is B.
What are Plants?The kingdom Plantae, which is primarily composed of photosynthetic eukaryotes, includes plants. They are largely multicellular. In the past, algae and fungi were included in the plant kingdom, which comprised all living organisms that were not animals.
Plants are vital components of nature and living things. The act of photosynthesis allows them to produce their own sustenance. Because of the existence of a substance called chlorophyll, plants appear green in colour. Direct energy production from sunlight occurs in plants through photosynthesis. It is better to think of the earliest terrestrial plants as having had close contact with water.
Therefore, the correct option is B.
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Parkinson’s disease is a brain disorder that may be caused by mutations in several genes that code for the production of alpha-synuclein. Individuals who have Parkinson’s disease exhibit symptoms such as uncontrollable tremors, difficulty walking, and loss of coordination. How might geneticists determine where the mutations that cause Parkinson’s disease are located? PCR analysis gene mapping DNA fingerprinting STR analysis
Answers
Answer:
They could use SNPs(Single nucleotide polymorphisms) of DNA, which are an anaylysis of chromosomes using high tech laser magnification. This SNPing allows scientist to more closely view specific genes in chromosomes that cause certain traits. It allows for a greater genetic mapping and could also be used to see mutations, if you know which chromosome to look at.
IDK, just an idea, SNPs were used to look at different species trait exhibition, I thought it might work for this if used properly.
Answer:
B) gene mapping
Explanation:
edge
Which period (not periodS) is older than the Triassic period? 1.Cambrian 2.Cretaceous 3.Jurassic 4.Paleogene
Answers
Answer:
is A
I took the test
The Triassic period is the longest geological period and the Mesozoic era's smallest. The Cambrian period precedes the Triassic period.
What is the difference between the Cambrian and Triassic periods?The Triassic era started 250-200 million years ago, following the greatest and most drastic widespread destruction ever.
It is recognized for the progression of Dinosaurs on land, flying pterosaurs, and swimming plesiosaurs as well as ichthyosaurs during the first Mesozoic period.
The Cambrian period is the most critical occasion of the Paleozoic era due to the presence of many animals.
During this time, the Earth's natural temperature is raised and the ice sheets started to melt at an alarming rate, causing widespread death and destruction.
Thus, the correct option is 1.
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Two fruit flies that are heterozygous for body color and eye color are crossed. Brown body color is dominant to black body color. Red eye color is dominant to brown eye color. Use the Punnett square to determine the ratio of offspring with: Brown body and red eyes Brown body and brown eyes : Black body and red eyes : Black body and brown eye.
Answers
The ratio of offspring that possess the following phenotype is as follows:
Brown body and red eyes: 9Brown body and brown eyes: 3Black body and red eyes : 3Black body and brown eye: 1This question involves two genes coding for body color and eye color in fruit flies respectively. The brown body color allele (B) is dominant over the black body color allele (b) in the first gene while the red eye color allele (R) is dominant over the brown eye color allele (r) in the second gene. In a dihybrid cross between two fruit flies that are heterozygous for both genes i.e. BbRr × BbRr, the allelic combinations of gametes produced by each parent fruit fly will be:BbRr- BR, Br, bR and brUsing these gametes to complete a punnet square (see attached image), 16 possible offsprings will be produced in a ratio 9:3:3:1 where;Brown body and red eyes (B_R_) : 9Brown body and brown eyes (B_rr) : 3 Black body and red eyes (bbR_) : 3Black body and brown eye (BbRr) : 1Hence, the ratio of the offsprings will be 9:3:3:1Learn more about punnet square at: https://brainly.com/question/14504341?referrer=searchResults
Answer:
9, 16, 3, 16, 3, 16, 1, 16
Explanation:
Brown body and red eyes ⇒ 9 ⇒ 16
Brown body and brown eyes ⇒ 3 ⇒ 16
Black body and red eyes ⇒ 3 ⇒ 16
Black body and brown eyes ⇒ 1 ⇒ 16
what main carbohydrate do grapes have
Answers
the main carbohydrate in grapes is sucrose
organism must go through mitosis to build new tissues.
Part C
Based on your model, do you think frogs reproduce sexually or asexually? What are the benefits and drawbacks to this
form of reproduction?
Answers
Answer:
Frogs reproducesexually and when organisisms reproduce sexually there are benefits which include:
produces genetic variation in the offspring.
the species can adapt to new environments due to variation, which gives them a survival advantage.
a disease is less likely to affect all the individuals in a population.
A disadvantage is that sexual reproduction takes longer than asexual reproduction. A mate must be found, the egg must be fertilised by sperm, and then the offspring develop. The benefit of introducing genetic variation into the species , however, outweighs this disadvantage.
Answer:
Frogs reproduce sexually: they require sperm from a male and an egg from a female to produce offspring. This type of reproduction allows for greater genetic variation. But organisms that sexually reproduce need to reach sexual maturity before they can reproduce. They also use energy to find a mate.
Which correctly lists the three plates that border the
Indo-Australian Plate?
O Pacific, Eurasian, and African
O African, North American, and South American
O Eurasian, African, and South American
O North American, Pacific, and African
Answers
Answer:
A- Pacific, Eurasian, and African.
Mark as brainliest if correct:)
Pacific, Eurasian, and African are the three plates that border the Indo-Australian Plate.
What plates border with the Indo-Australian Plate?The Indo-Australian Plate consists of the majority of the Indian Ocean. It borders with the Eurasian Plate in the northside, the Antarctic Plate in the southside and the Pacific Plate in the east.
So we can conclude that Pacific, Eurasian, and African are the three plates that border the Indo-Australian Plate.
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Foliated metamorphic rocks have mineral grains that are randomly placed. true or false
Answers
Answer:
True
Explanation:
Metamorphic rocks are foliated if their mineral grains are arranged randomly.
Answer:
False
Explanation:
Foliated means to have grains placed in parallel layers, while non foliated rocks mean the grains are placed randomly
1. Which one lived in Antarctica earlier, the labyrinthodont, the lystrosaurus, or the duck-billed dinosaur? Explain
Answers
Answer:
The correct answer is - The labyrinthodont.
Explanation:
Fossils of These duck billed dinosaur were found in the Antarctica in sands that were 66 to 67 million years old, however these are also found in north America and north Europe.
About 110 million years ago, labyrinthodonts, the dinosaur that are amphibians. These are the animals that were lived in the river valleys of the Gondwana and the rift valley that was located at that time between Australia and Antarctica.
Thus, the correct answer is - The labyrinthodont.
Which of these is a producer? moth mushroom fern cheetah
Answers
Answer:
dear
from the above options fern is a producer
Answer:
ferns!
Explanation:
A triglyceride is made up of three fatty acids and one molecule of _____. glycerol glucose phospholipid water
Answers
Answer:
glycerol
Explanation:
A triglyceride is made up of three fatty acids and one molecule of _glycerol .
A triglyceride is made up of three fatty acids and one molecule of glycerol.
What is the main component of triglyceride?The triglyceride is made up to three fatty acids and one molecule of glycerol. During a dehydration reaction, there is a formation of a triglyceride by joining three fatty acids with glycerol backbone. At this time, three molecules of water are released.A triglyceride is made up of three fatty acids and one molecule of Glycerol.
Phospholipids, also known as glycerophospholipids, are the derivatives of fatty acids which is a major structural component of the cell membranes. Phospholipid is the class of lipids that is composed of a glycerol molecule that forms ester bonds with the two long-chain fatty acids and one phosphate group.
Therefore, A triglyceride is made up of three fatty acids and one molecule of glycerol.
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What property of DNA makes it possible for a probe to find a single-stranded
DNA target gene?
A. Probes are dominant over genes.
B. Chromosomes come in pairs.
C. A DNA molecule has two paired strands.
D. Alleles are in pairs.
Answers
Answer:
A DNA molecule has two paired strands.
if water were a nonpolar molecule, how would its properties be different? A. water would be able to form hydrogen bonds B. water would not be able to climb up inside plants C. water would be a much heavier molecule D. water would stick together much more strongly
Answers
If water were a nonpolar molecule, its properties would be different as it would stick together much more strongly.
What do you mean by Nonpolar molecule?A Nonpolar molecule may be defined as molecules consisting of those that do not have a dipole or nonpolar solvent.
If water were a nonpolar molecule, it would not be able to form hydrogen bonds due to the lack of a negative end and two positive ends.
Non-polar molecules stick much more strongly when put into polar environments.
Therefore, if water were a nonpolar molecule, its properties would be different as it would stick together much more strongly.
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(BRAINIEST FOR QUICKEST) Describe two safety precautions you should take when handling a flammable liquid.
Answers
Answer:
goggles and gloves
Explanation:
Consider the following statements:
1) Glycolysis involves a partial breakdown of glucose to produce two molecules of
pyruvate
31) Glycolytic reactions produce a net total of two ATP molecules
111) Glycolysis occurs in the mitochondrial matrix of eukaryotic cells
IV) Glycolysis produces 2 NADH molecules
V) Glycolysis cannot occur without oxygen
Which of the above statements is/are correct?
A) I only
B) I and II
C) I and III
D) I, II, and IV
E) I, II, IV, and V
Answers
Answer:
The answer is option D.
I, II, and IVHope this helps you
Assume that one molecule of glucose enters glycolysis in a red blood cell, generating two molecules of glyceraldehyde 3-phosphate. Both molecules enter the payoff phase. One molecule enters the Rapoport-Luebering shunt, while the other does not. How many net molecules of ATP are produced from this molecule of glucose
Answers
Answer:
From glycolysis only 8 ATP molecules are obtained
Explanation:
The 8 molecules of glycolysis 6 come from NADH, which is the one that carries these molecules by dissociating, giving NAD + H + as a product.
The metabolic pathway of glucose actually generates 38 ATP, but this value would be the sum of 8 from glycolysis, 6 from the pyruvic acid pathway and 24 from the krebs cycle ... These last two pathways are part of cellular respiration .
A bacterial or archaeal species is best defined as _____ the most fully characterized and most representative member of a taxon a collection of strains that share many stable properties and differ significantly from other groups of strains a collection of strains that have distinctive immunological reactivity the descendants of a single, pure microbial culture that have been maintained by careful aseptic technique
Answers
Answer:“a monophyletic and genomically coherent cluster of individual organisms that show a high degree of overall similarity with respect to many independent characteristics
Explanation:
I NEED HELP ASAP I WILL MARK BRAINLIEST IF CORRECT !!!!!!!!!!!!!!!
What is a radula?
a hard outside shell used for protection
a muscular foot that helps move the animal around
a muscular limb used for digging in mud or sand
a tonguelike organ that is used for feeding
Answers
Answer:
a tongue like organ that is used for feeding.
Answer:
It's a tongue like organ used for feeding
Explanation:
It's used for scraping or cutting food before the food enters the esophagus!
You are attempting to see if a suspect is associated with a crime. The only evidence you have is a tiny drop of blood from the crime scene, which is not enough to run an analysis. How can you increase your crime scene DNA sample
Answers
Answer:
There are no options in this question but generally a sample of DNA can be increased;
By using Polymerase Chain Reaction (PCR) technique.
Explanation:
This question describes the application of making molecular biology to solving a crime problem; a branch called forensics. In this case where an insufficient small amount of DNA sample was recovered from the blood in a crime scene, the polymerase chain reaction technique, commonly known as PCR can be used to increase the DNA sample.
In the 1980's, a molecular technique used to amplify part of a template DNA strand to produce several copies of it, was invented by Kary Mullis and his colleagues. This amplification refers to the numerical increase in the number of DNA sequence.
Through what process does water enter the atmosphere from the surface of
plants?
A. Filtration
B. Transpiration
C. Percolation
D. Evaporation
Answers
Answer:
Transpiration is the loss of water from plant surface into the environment
Explanation:
Answer:
transpiration
Explanation:
Transpiration is the process of water movement through a plant and its evaporation from leaves and flowers.
Which is a result of a seasonal change (meaning a change that happens over
and over at a certain time of year)?
A. Plankton dying due to an oil spill
B. Frogs digging into mud to hibernate in the winter
C. Grass dying due to overgrazing
D. Fish moving away from a polluted site and into cleaner water
Answers
Answer:
b
Explanation:
the winter is a season
The answer is B. Frogs digging into mud to hibernate in the winter is a seasonal change that happens every year as temperatures drop in the winter.
What can be with case of planktons ?Plankton dying due to an oil spill, grass dying due to overgrazing, and fish moving away from a polluted site and into cleaner water are not necessarily tied to seasonal changes, but can occur due to other factors such as pollution, climate change, or human activities.
A seasonal change is a natural occurrence that happens regularly and predictably during certain times of the year. These changes are often triggered by shifts in the amount of sunlight, temperature, and precipitation that occur as the Earth moves through its annual orbit around the sun.
Some common examples of seasonal changes include the arrival of spring flowers, the turning of leaves in the fall, and the migration of birds in the winter.
In the case of frogs digging into mud to hibernate in the winter, this is a natural response to the colder temperatures that occur during the winter months.
As temperatures drop, frogs begin to slow down and their metabolism slows, causing them to seek out shelter and protection from the cold. By digging into the mud, they are able to protect themselves from freezing temperatures and other harsh winter conditions.
In contrast, the other examples given - plankton dying due to an oil spill, grass dying due to overgrazing, and fish moving away from a polluted site and into cleaner water - are not necessarily tied to seasonal changes.
These events can occur at any time of year and are often caused by human activities such as pollution, climate change, and overuse of natural resources.
While these events may have a significant impact on the environment, they do not represent the natural, predictable seasonal changes that occur as part of the Earth's natural cycles.
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The image shows the skulls of three different organisms. The foramen magnum position is the hole in the skull where the spinal nerve cord passes through. Based on the structure of the skulls, which two statements can you infer?
Answers
Complete question: The image shows the skulls of three different organisms. The foramen magnum position is the hole in the skull where the spinal nerve cord passes through. Based on the structure of the skulls, which two statements can you infer?
a) All three organisms share a common evolutionary lineage
b) Wolves do not share any common ancestors with humans and chimpanzees.
c) Humans likely share more common ancestors with chimpanzees than they do with wolves.
d) Chimpanzees share more common ancestors with wolves than they do with humans.
Note: The skull figures are shown in the attached file
Answer:
a) All three organisms share a common evolutionary lineage
c) Humans likely share more common ancestors with chimpanzees than they do with wolves.
Explanation:
Although controversial, there is a theory that states that the foramen magnum is associated with bipedalism and human beings´ evolution. According to different studies, the foramen magnum moved from the posterior part of the skull to a central and ventral position. This displacement occurred as mammals began to move in two legs - bipedalism-.
When comparing different mammals skulls it seems evident that bipedalism and foramen magnum position and orientation are highly related. Although all mammals have a common ancestor, the foramen magnum of bipeds mammal organisms is located more anteriorly and ventral than the foramen magnum of the quadrupeds mammals.
In the exposed example, when comparing these three skulls, the two statements that might be inferred are:
a) All three organisms share a common evolutionary lineage. This is true because they are all mammals, and as a group, they share a common ancestor in evolution.
c) Humans likely share more common ancestors with chimpanzees than they do with wolves. This is true because by analyzing the foramen position, we can see that both the chimpanzee and the human´s foramen is located on the ventral side of the skull. Chimpanzees´ hole is more posteriorly and humans´ hole is more anteriorly or centrally located, but in both cases, they are in ventral position. Wolves´ hole, on the other hand, is located posteriorly. As we said before, Although all mammals have a common ancestor, the foramen magnum of bipeds mammal organisms is located more anteriorly and ventral than the foramen magnum of the quadrupeds mammals. And groups closer to human beings (in this case is chimpanzee) show their foramen magnum in a similar place than those mammal groups that are further in evolution (wolves).
Answer:
The person on top is right
Explanation:
Read the passage: Genetically Engineered Corn. Then 1. Explain what Bt corn is and how it is made. 2. Describe the benefits of Bt corn. 3. Describe the risks of Bt corn. 4. Make an argument for or against the use of Bt corn and provide support for your position.
Answers
1. Bt maize is a genetically modified maize. It is produced through biochemical techniques and with the use of biotechnology that allows genes of Bacillus thuringiensis bacteria to be introduced in the DNA of corn. These genes allow Bt maize plants to produce a toxic protein specific to certain groups of insects.
2. With the production of this protein, Bt corn becomes immune to attack by these insects. As a result, the use of pesticides in the corn crop is reduced, which makes production healthier and avoids side effects on the soil. In addition, it prevents the production of corn from falling due to the attack of insects.
3. Among the disadvantages, we can say that Bt maize does not control all the pests that attack maize, only a few, which allows maize to be attacked. It can also trigger evolution in pest species that are immune, creating a toxin-resistant species. Finally, it can create contamination in wild maize crops (that is, those that have not been genetically modified), ending diversity.
4. I believe that the use of Bt corn is favorable. This is because it allows a greater production of food to meet our need and increasingly intense demand for food. However, it is necessary to affirm that the use of this corn needs regulation and inspection, mainly in the big industries that can harm the small producer.
Answer:
3. Among the disadvantages, we can say that Bt maize does not control all the pests that attack maize, only a few, which allows maize to be attacked. It can also trigger evolution in pest species that are immune, creating a toxin-resistant species. Finally, it can create contamination in wild maize crops (that is, those that have not been genetically modified), ending diversity.
Explanation:
¿Qué les explicarías y con qué argumentos basándote en conocimientos científicos para convencerlos de practicar el distanciamiento social y usar mascarilla
Answers
Answer:
Experimentos de índole descriptiva han demostrado que diferentes tipos de virus no pueden desplazarse por aire, con lo cual estas estrategias resultan efectivas para evitar su esparcimiento en la población
Explanation:
El distanciamiento social y el uso de barbijos son herramientas útiles para combatir la propagación de muchos virus, especialmente aquellos con un alto indice de infección, como es el caso del nuevo Coronavirus Sars-Cov-2 el cual está asociado a un síndrome respiratorio agudo que puede incluso llevar a la muerte del individuo. Sars-Cov-2 es un virus muy peligroso porque todavía no contamos con un tratamiento efectivo tal como, por ejemplo, una vacuna que permita generar una respuesta inmunológica permanente contra el virus. De este modo, es imprescindible evitar la propagación del virus hasta que la comunidad científica pueda desarrollar un tratamiento efectivo.