Answer:
The probability of two healthy Tay-Sachs carriers having a child that has the disease will be [tex]25[/tex] %
Explanation:
It is given that Tay Sachs is a recessive disorder which means the genotype must both recessive allele.
Let the dominant normal allele be T and the recessive diseased allele be t
Genotype of a healthy Tay-Sachs carriers will be Tt
Tt * Tt
TT, Tt, Tt, tt
Only child with genotype tt will have Tay-Sachs disease
Hence the probability of two healthy Tay-Sachs carriers having a child that has the disease will be [tex]\frac{1}{4} * 100 = 25[/tex] %
what does a heterotroph mean?
Answer:
An animal that cannot make its own food.
Explanation:
A heterotroph is an animal or life source that cannot make its own food, so it depends on others things, such as plants or other animals. These types of listings can be as followed :
Carnivores
Herbivores
Omnivores
PLS HELP, DUE IN 30 MINUTES :( I GIVE BRAINLIEST
Look at Scenario A below and select the correct Punnett Square that corresponds with the scenario. For all questions, the trait being studied is seed color - red seeds (R, dominant) and pink seeds (r, recessive). Scenario A: Parent 1: heterozygous Parent 2: pink
Answer: A
Explanation:
Heterozygous means it has both a recessive and a dominate allele so in this case it’d be shown as Rr. For a parent to appear pink, the genotype must be rr (because r is recessive and won’t show up in the parent if there’s a dominant allele to over lower it). The only option that shows an Rr and rr pairing is option A
If 30% of a DNA sample is composed of thymine nucleotides, what percentage of the DNA sample would be composed of cytosine nucleotides?
Answer:
20%
Explanation:
Pairing do occur between a purine and a pyrimidine base or a pyrimidine and a purine base where Adenine pairs with Thymine and Guanine pairs with Cytosine.
DNA(deoxyribonucliec acid) sample is usually compose of 100% nucleotide base,
Since 30% of the sample section is compose of thymine then Adenine the base pair will also be 30% this is because adenine will always pair with thymine and each will occur in equal quantity. Together, adenine and thymine compose 60% of the segment.
While the remaining 40% of the section is composed of guanine and cytosine pairs and since the two bases will be equal in quantity, 20% of the DNA section will be cytosine nucleotide.
PLEASE I NEED HELP ASAP!! WILL GIVE BRAINLIEST AND 100 POINTS!!! When you cross two heterozygous organisms, what is the probability that the offspring will show the dominant phenotype? (HINT: You may want to draw a Punnett Square on a separate piece of paper to help.)
A. 100
B. 75
C. 50
D. 25
E. 0
Answer
75% chance
Explanation:
The dominant and recessive are the terms used to explain the phenotypic traits and genetic makeup of an organism. The cross between a heterozygous species will result in a 75% chance of the species expressing a dominant phenotype.
The correct answer is:
Option B. 75%
The heterozygous condition refers to the one dominant and one recessive allele, whereas purebred is the condition in which both alleles are either recessive or dominant.
The dominant alleles are always expressed in purebred and heterozygous conditions.
The recessive alleles are expressed in purebred conditions only.
In the given attachment, consider the cross between round shaped-seeds in heterozygous conditions.
Thus, the chance of progeny will have round-shaped seeds is 75%.
To know more about monohybrid cross, refer to the following link:
https://brainly.com/question/1185199
The total amount of all energy in the universe is...
O slightly increasing
O slightly decreasing
O always the same
O always zero
Answer:
Always the same
Explanation:
The first law of thermodynamics, also known as Law of Conservation of Energy, states that energy can neither be created nor destroyed; energy can only be transferred or changed from one form to another. ... In other words, energy cannot be created or destroyed.
Olivia was reading about the Earth's history. She grew interested in the Quaternary period in the Cenozoic era and studied it further. The Quaternary
period is best known for which two major events?
A. the rise of reptiles and flowering plants
O
B. the rise of mammals and swimming mammals
O
c. the ice ages and the rise of humans
O
D. the rise of dinosaurs and other reptiles
Answer:
oh yeah daddy
mink ,
Explanation:
Answer:
B
Explanation:
The Cenozoic era was known to be called the age of mammals, because the largest land animals have been mammals during that time. Meaning Mammals that swim would also be living during that time with land mammals.
what are some moons with ice and rocks?
Answer:
There are only two large rocky moons in the Solar System: the Earth's Moon and Io. The other moons have interiors with a varying ratio of ice : rock, and have surfaces that are made almost entirely of ice.
Explanation:
Is it varration , overpopulation or adaption On average, sea turtles lay about 110 eggs in a clutch. However, only a fraction of the baby turtles make it to the ocean. Then, an even smaller number have offspring of their own.
Answer: this is adaptation, but not in the way suggested in the question.
Explanation:
The question is suggesting that the 1% or so of turtle hatchlings that make it to maturity are the result of a variation that gives a selective advantage. This is not so. The only thing being selected for is sheer luck. The underlying adaptation is that all eggs hatch within a short period, so that predators are overwhelmed by numbers and some offspring by chance make it to the water, still dangerous, but less so than the sand. After the hatchlings reach the sea chance will still be a factor, but it is at this stage that natural selection may operate on advantageous variations.
There are two reproductive strategies, common to plants as well as animals. Turtles represent one of those strategies, which is to invest resources to produce large numbers of immediately self-sufficient offspring so that at least some will survive. The other strategy is to produce one or few offspring and invest resources in protecting and feeding it or them until self-sufficient and capable of surviving to maturity.
These are adaptations which are selected for because they confer advantage for the species concerned. One or the other may be the better solution depending on the species. Mammals, for example, invest in the latter strategy.
What is carbon emissions responsible for?
Answer:
Carbon dioxide (CO2) makes up the vast majority of greenhouse gas emissions from the sector, but smaller amounts of methane (CH4) and nitrous oxide (N2O) are also emitted. These gases are released during the combustion of fossil fuels, such as coal, oil, and natural gas, to produce electricity.
Explanation:
What can Carbon do?
Carbon emissions affect the planet significantly, as they are the greenhouse gas with the highest levels of emissions in the atmosphere. This, of course, causes global warming and ultimately, climate change. Carbon dioxide is released into the atmosphere when fossil fuels — coal, natural gas, and oil — are burned.
Which structure helps fish remove oxygen from the surrounding water?
Answer:
Gills
Explanation:
In order to remove oxygen from the water, they rely on special organs called "gills." Gills are feathery organs full of blood vessels. A fish breathes by taking water into its mouth and forcing it out through the gill passages.
www.wonderopolis.org › wonder
How Do Fish Breathe
Answer:
Gills
Explanation:
___ of the greenhouse effect is a bad thing. Since there are more and more greenhouse gases in the atmosphere more ___ is trapped which make the earth ___. This is called ___
Answer:
1. Increase/occurrence
2. Heat
3. Warm
4. Global warming
Explanation:
Greenhouse effect is the process whereby heat is trapped by certain gases in the atmosphere called GREENHOUSE GASES e.g. carbon dioxide (CO2). Greenhouse gases have the ability to trap heat, hence, their increase in the atmosphere becomes a major concern as it starts becoming a bad occurrence.
An increase in the greenhouse gases in the atmosphere means more heat will be trapped, thereby, inducing the Earth to become WARM. This process where the Earth's temperature rises as a result of greenhouse effect is called GLOBAL WARMING.
Antibiotic and vitamins are examples of sac fungi
True or false?
Answer: True
Explanation: Some types of sac fungi are used in the creation of vitamins and antibiotics.
.
When a volcano erupts and spews lava from under Earth's surface, people and animals must evacuate the area. The lava pours into a nearby bay, preventing people from using the water, and particles of ash rise high into the air. Which spheres of the Earth would be affected by this volcanic eruption?
Answer:
I don't know sorry
Explanation:
The gamete of a red fox has 19 chromosomes in it. How many chromosomes are in the red foxes DIPLOID skin cells?
Answer:
38 chromosomes are in the red foxes DIPLOID skin cells
Explanation:
There are two principal types of cells in the organism:
Diploid cells (2n) Somatic diploid cells (2n) reproduce by the process of mitosis and produce two diploid cells.Germ diploid reproductive cells (2n) also reproduce by mitosis and produce two diploid cells. But can also reproduce by the process of meiosis, suffering a reduction in the number of chromosomes and producing four haploid cells (n). Haploid cells (n)Gametes are the product of germ cell division by meiosis, and they have only one set of chromosomes, n (19 in this example). Their destiny is to merge in the process of fecundation, during which a new diploid cell called the zygote emerges through fertilization. The zygote is a complete diploid cell that suffers successive mitosis and forms a new organism (a new fox in this case).
- So, through meiosis, the diploid germ cell (2n) produces four haploid cells (n) that are the gametes.
- Through fecundation or fertilization, two gametes (n) merge and produce a diploid cell (2n) that is the zygote.
If the red fox gamete has 19 chromosomes (haploid number n, the single set of chromosomes), it must merge with another gamete (coming from the other parent) with 19 chromosomes to form the zygote. The zygote is a diploid cell. The zygote will suffer many mitosis divisions to become a new fox.
To know the number of chromosomes in a skin cell, we need to duplicate the number of chromosomes in the gamete (19).
N = 19 = Haploid number2N = 2 x 19 = 38 = Diploid numberWhat kind of texture will a conglomerate rock have?
A. large-grained
B. fine-grained
C. medium-grained
D. coarse-grained
Answer:
d
Explanation:
edge 2021
If you found a cell of unknown origin with a cell membrane, ribosomes and DNA, can the cell be PROKARYOTIC?
Answer:
Yes. both prokaryotic cells and eukaryotic cells have ribosomes, DNA and a cell membrane.
Does anyone else answer questions that say they will make you brainliest and then the person never makes you brainleist -_-
Answer:
all the time
Explanation:
Answer:
Yea I don't like it when that happens they normally get reported by someone but....
Explanation:
adrenocorticotropic hormone
Explanation:
adrenocorticotropic hormone= It stimulates the adrenal cortex.
What role do glucose and oxygen play in cellular respiration?
They are reactants because they are present before the reaction.
They are reactants because they are present after the reaction.
They are products because they are present before the reaction.
They are products because they are present after the reaction.
Answer:
They are reactants because they are present before the reaction
How is the emergence of antibiotic-resistant bacteria an example of natural selection?
Answer:
Because beateria that don't have the antibiotic resistant trait will die much more faster than the ones with antibiotic resistance.
Explanation:
I’m confused lol please help
Answer:
shh, im just as confused as you, ask ur teacher for help or ur parent
Explanation:
What are reactants of cellular respiration
Movement of the particles across the membrane stops when the concentration gradient no longer exists, the particles will continue to diffuse due to random motion
Answer:
Once the concentration gradient no longer exists, particles will continue to diffuse due to random motion.
Explanation:
When there is a permeable membrane between two solutions with different concentrations, the concentration gradient will go from the compartment with more particles to the one with fewer particles to valance the concentrations on both sides of the membrane. Once the concentrations are equal, particles will still randomly move from one side to the other, but the number of particles that move to one side is almost the same as the number of particles that move to the other, so there is still valance and the same concentration in both sides.
Nutrition affects development of the physical brain therefore: nutrition can not contribute to IQ scores nutrition is not related to intelligence nutrition is related to intelligence
Answer:
//
Explanation:
Nutrition is related to intelligence?
HELP PLEASEEEEEEE guys
Answer:
Explanation:
VE RAPIDO ES LA RESPUESTA B
I need help! Please!
1. Think about and describe how the organism might move around and how it might eat.
2. Make a list of the organism’s features that might help it survive in its habitat.
3. Describe how each feature you listed is suited to its function.
Answer 1.- Well a duck is still a bird. So it has hollow bones that makes its body lighter.It eats insects, worms amphibians and plants, so it's an omnivore.2. It has hollow bones, it has an oily coating that prevents any water from settling in its duck feathers. 3. Feature no. 1-Makes body lighter so it's easier to swim, Feature 2- oily coating prevents water from getting into the feathers, preventing any water being absorbed into their bodies.
Explanation:
Brown hair is dominant over blonde hair. Could two brown hair people have a blonde haired kid? Explain
What would be the possible offspring phenotypes if two brown hair people did have offspring.
Answer:
Two people with brown hair could have a child with blonde hair, but only if they are both heterozygous.
What are two genotypes that could produce a dominant phenotype?
Answer:
A homo-zygous dominant genotype and a heterozygous genotype
Explanation:
A homo-zygous dominant genotype refers to a genotype that contains two copies of the dominant gene variant, i.e., two dominant alleles at its locus, thereby individuals carrying this genotype will show a dominant phenotype. Moreover, a heterozygous genotype is a genotype that contains both dominant and recessive alleles at its locus. In a heterozygous genotype, the dominant allele is always expressed and masks the recessive allele, thereby showing a dominant phenotype.
What tells cells how to make proteins
Answer:
The DNA of the cell tells the cell how to make proteins
Explanation:
Directions: Identify the kind of relationship shown in the following
Learning Task No.1DO YOU KNOW ME? help pls
Answer:
Food chains?
Explanation:
Predator and preys
Answer:
1. Predation 2. Parasitic 3. Competition 4. Symbiosis 5. Mutualism
Explanation:
Predation- Predator hunting prey Ex: lions hunting gazelle
Parasitic- One organism benefits while the other is harmed Ex: Lice eating Hair
Competition- Organisms fighting over reasources Ex: Hippos fighting for space
Symbiosis- Two unalike organisms form a bond where they both benefit Ex: Birds eating ticks off buffalo.
Mutualism- Two organisms benefit from each other Ex: whale shark getting cleaned by remora fish which get a meal.