The statement Mendelian inheritance concerns the genetic traits of domesticated plants and animals, while non-Mendelian inheritance concerns human genetic traits is true (Option C).
Who was Gregor Mendel?Gregor Mendel was a Hungarian botanist who performed different crosses between pure lines of pea plants, which led him to develop a series of hypotheses that are nowadays laws in the genetic field.
Therefore, with this data, we can see that Gregor Mendel discovered several inheritance laws by working with pea plants and these discoveries can be applied to plant genetics, animal genetics and also to humans.
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Compare mitosis and meiosis in the following two attributes:
- the number of copies of DNA and whether the copies are different
-what kinds of cells undergo these two processes
Thank you!
Mitosis may be defined as a type of cell division in which a parental cell is divided into two daughter cells that are genetically identical to them. These daughter cells are diploid in nature. Somatic cells of the body undergo this process of cell division.
What is Meiosis?Meiosis may be defined as a type of cell division in which a parental cell is divided into four daughter cells that are genetically unique to them. These daughter cells are haploid in nature. Germ cells (gamete cells) of the body undergo this process of cell division.
Therefore, the comparison of mitosis and meiosis in the following attributes is well described above.
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Which change is an example of a response to a stimulus?
*
1 point
(1) The pupil of an eye decreases in size in bright light.
(2) A leaf absorbs sunlight in the morning.
(3) The water level of a pond rises on a rainy day.
(4) A dead tree decays after many years.
Answer: (1) The pupil of an eye decreases in size in bright light.
Explanation: When the light hits the eye, it stimulates the pupil to contract.
Which cells are haploid and which cells are diploid???
Organisms capable of sexual reproduction are diploid. Humans only have haploid cells in the egg and sperm.
What is reproduction?Reproduction is defined as the process by which new organisms (offspring) of the same sort are created. It contributes to evolution by generating variants through genetic recombination. The ecosystem's species diversity is aided by it.
Two complete sets (2n) of chromosomes are present in diploid cells. A haploid cell only has one complete pair of chromosomes and has half as many chromosomes (n) as a diploid cell.
Thus, organisms capable of sexual reproduction are diploid. Humans only have haploid cells in the egg and sperm.
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Are there any parts of the human body that get oxygen directly from the air and not from the blood?
Answer:
no
Explanation:
all oxegyn going through your body gets there from your blood flow
Why is the femur of a whale considered to
be a vestigial structure?
It no longer serves a function in the animal. This is the answer
It is the most useful structure in the animal.
Answer: Because whale swims and femur is not required in this.
Explanation:
Sometimes, parts of the body that were useful to our ancestors no longer are in our bodies. These structures, like the pelvis and femur in whales, are proof that natural selection over time allowed us to evolve from ancestors who possessed different characteristics.
Whales' femur and pelvis are regarded as vestigial structures. These buildings were passed down from relatives who used them, but they are no longer in use. Animals that once walked on land have given rise to whales.
For this reason, their forebears need a pelvis and femur bones. Whales have these structures today, but they did not develop the ability to swim, despite the fact that they do.
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If you discover a new species what characteristics does that species need to be included in each of the kingdoms?
If you are to discover a new species, the characteristics of the species that need to be included in each of the kingdoms include the following below:
Archaea - prokaryotic, unicellular, auto/heterotrophic, cell wall, uncommon lipids. Bacteria - prokaryotic, unicellular, cell wall - peptidoglycan, auto/heterotrophic.Protista - eukaryotic, most unicellular- some colonial, cell wall- pectin, auto/heterotrophic.Fungi - eukaryotic, most multicellular. cell wall- chitin. heterotroph Plantae - eukaryotic, multicellular, autotrophic. cell wall- cellulose.Animalia - eukaryotic, multicellular, no cell wall, heterotroph.What is Kingdom?This is referred to as a taxonomic rank that is composed of smaller groups called phyla.
They have their unique properties which is checked before the organisms are grouped under any of them. An example is kingdom animalia which is eukaryotic, multicellular, and has no cell wall.
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Select three events that occur as an unspecialized cell differentiates into a cell that helps transport water in plants.
Answer:
Explanation:
Differentiation dramatically changes a cell's size, shape, membrane potential, metabolic activity, and responsiveness to signals. These changes are largely due to highly controlled modifications in gene expression and are the study of epigenetics.
The three events that occur as an unspecialized cell differentiates into a cell that helps transport water in plants are as follows:
Formation of vascular bundles like xylem and phloem.Cells are adapted to perform the process of photosynthesis and transpiration.Cells of the plant tissue become more compact than usual. What is cell differentiation?Cell differentiation may be defined as the process during which young, immature (unspecialized) cells take on individual characteristics and reach their mature (specialized) form and function.
In order for a cell to differentiate into its specialized form and function, it need only to manipulate those genes (and thus those proteins) that will be expressed, and not those that will remain silent. The primary mechanism by which genes are turned “on” or “off” is through transcription factors.
Therefore, the three events that occur as an unspecialized cell differentiates into a cell that helps transport water in plants are well-described above.
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11. The diagram shows the formation of water from hydrogen and oxygen.
Which statement is true?
A. The reaction satisfies the Law of Conservation of Matter because only one type of substance is formed as a product.
B. The reaction satisfies the Law of Conservation of Matter because the number of each type of atom is the same in the products and reactants.
C. The reaction does not satisfy the Law of Conservation of Matter because the atoms are in different arrangements in the products and reactants.
D. The reaction does not satisfy the Law of Conservation of Matter because the new substance formed is made up of two types of atoms.
The reaction satisfies the Law of Conservation of Matter because the number of each type of atom is the same in the products and reactants.
The above given statement is true.
What is the "Law of Conservation of Matter"?
The "Law of Conservation of Matter" states that "matter can neither be created nor be destroyed". In other words, the total mass of an isolated system remains constant over time, as mass is neither created nor destroyed. This law applies to all types of matter, including atoms, molecules, and energy.
What are Atoms?
Atoms are basically the basic building blocks of matter. They are composed of protons, neutrons, and electrons and are the smallest particle of an element that still retains the properties of that element. Atoms are the fundamental units of chemistry and form the basis of all matter in the universe.
Therefore the option that is true is Option B.
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area of a reserve that helps to protect any
negative impact of human activities (2 words)
B
Some Galápagos Islands
have mountains and
some do not. What does
this mean for the climates
of these islands?
These islands have different climates this
Mountains have nothing to do with climate
The Galápagos Islands have a distinctive island ecosystem because of environmental factors. Despite being close to the equator, the Galápagos Islands benefit from cool ocean currents.
What is the speciality of Galápagos Islands?The highest point in the Galapagos Islands, Wolf Volcano, is situated on Isabela Island. The mountain has a 5,600-foot peak (1,707 meters). It is named for a German geologist from the 19th century and is a shield volcano as well.
The steep mountainous terrain of the Galápagos Islands was shaped by several volcanic eruptions. Most people recognize the Galápagos for their wide variety of plant and animal species. Numerous species are endemic, which implies they can only be found in certain specific areas.
Being on the equator, the climate in the Galapagos Islands does not change significantly throughout the year. The Islands' climate is most appropriately categorized as subtropical.
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The water flows from the
point to
points and joins together
Answer:
All rivers and streams start at some high point. The high point can be a mountain, hill, or other elevated area. Water from some source like a spring.
can I turn my cat into a diamond?
Answer: Probably
Explanation: Use the ashes and ask someone to turn it into. It probably will cost alot
The graph shows the projected increase in the world population and the projected changes in the populations of individual continents. Which statement is supported by the data in the graph?
A. The fertility rate on Earth is increasing quickly.
B. The birthrate on Earth is higher than the death rate.
C. Earth's carrying capacity has been surpassed.
D. Earth's immigration rate is higher than its emiaration rate.
The graph shows the projected increase in the world population and the projected changes in the populations of individual continents: (A) Earth's population will increase quickly because the graph is between millions of people and world population growth.
What is World population?Any whole group that shares at least one trait is referred to be a population. Populations are more than simply individuals. Populations may include—but are not restricted to—people, animals, organizations, structures, houses of worship, automobiles, farms, and other things or occasions.
Rapid population growth makes it more difficult for low- and lower-middle-income nations to finance the per capita rise in public spending required to eradicate poverty, end hunger and malnutrition, and assure universal access to health care, education, and other important services.
The current world population of 7.6 billion is expected to reach 8.6 billion in 2030, and 9.8 billion in 2050 according to the UN.
Thus, we can conclude that the earth's population will increase quickly.
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All plants make their own food. Which of the following is NOT required
for these plants to make their own food?
A. sunlight
B. water
C. dirt
D. air
Answer:
D Air.
Explanation:
All the other options are needed for food except air.
Which of these
is NOT a sex-
linked disorder?
A. muscular dystrophy
C. hemophilia
3
B. color blindness
D. codominance this
Answer: Which of these is NOT a sex-linked disorder?
D. codominance
Explanation:
The correct answer is optionD. Codominance. Codominance is not a sex-linked disorder. Sex-linked disorders are genetic conditions that are associated with genes located on the sex chromosomes (X and Y). Option A, muscular dystrophy, and option C, hemophilia, are both examples of sex-linked disorders. These conditions are more commonly seen in males because the genes for these disorders are carried on the X chromosome, and males only have one X chromosome. Option B, color blindness, is also a sex-linked disorder. It is caused by a mutation in the genes on the X chromosome. However, option D, codominance, is not a sex-linked disorder. Codominance refers to a situation where both alleles of a gene are expressed equally in the phenotype of an individual. It is not specifically related to the sex chromosomes.
HELP QUICKLY PLEASE !!!
1. Why are Clostridium Botulinum considered to be very pathogenic?
2. At what stage do Clostridium Botulinum produce toxins?
Answer:
1. Clostridium Botulinum can only grow in the absence of oxygen.
2. Clostridium Botulinum grows and produces toxins in food prior to consumption.
Show the cross for a pure breeding short haired Guinea pig and a long haired Guinea pig.what is the genotype of the offspring ??
Answer:
let L= represent allele for long hair l= represent allele for short hairGenotype of offsprings will all have Ll that’s if the long haired Guinea pig is homozygous dominant for the traitbut,
Genotype of offsprings will be,Ll Ll ll and ll that's when the long haired pig is a heterozygous situationWhat is a common misconception
of evolution?
A. Evolution is a slow process.
B. Evolution is a theory and there is evidence for it.
C. Evolution was developed by Charles Darwin.
D. Evolution is when apes stood up and developed
into humans. This
A common misconception of evolution is that it is when apes stood up and developed into humans (option D).
What is evolution in biology?Evolution is the transformation of animals, plants and other living things into different forms (now understood as a change in genetic composition) by the accumulation of changes over successive generations.
The theory of evolution is based on the idea that all species are related and gradually change over time.
Charles Darwin, who developed evolution, proposed a theory which states that evolution happens by natural selection. Darwin published his theory of evolution in the origin of species where he presented evidence to support this theory that all life on earth evolved from a common ancestor.
Therefore, option D is a misconception of evolution.
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Which represents a strand of RNA bases?
TGGCTCGAA
UGGCUCGAA
GTTAGTGCC
CAATCTAGG
The correct strand of RNA bases is UGGCUCGAA. Therefore, the correct option is B.
What is a nucleotide?RNA is a nucleic acid that is composed of nucleotides. A nucleotide is composed of a sugar molecule, a phosphate group, and a nitrogenous base. RNA differs from DNA in its single-stranded structure, the presence of uracil instead of thymine, and the sugar molecule being ribose.
The sequence of bases determines the genetic information in RNA. The bases in RNA are adenine, cytosine, guanine, and uracil. The sequence UGGCUCGAA represents an RNA sequence of bases.
The sequence UGGCUCGAA transfers the genetic information from the DNA to ribosomes, where the sequence is translated by ribosomes into amino acids, which results in the formation of a specific protein with a unique function in the cell.
Therefore, the correct strand of RNA bases is UGGCUCGAA.
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An antelope population has a negative population growth rate. Which of the following conditions must also be true for the population growth rate to be negative?
a. births + deaths < immigrations + emigrations
b. births + deaths > immigrations + emigrations
c. births + immigrations < deaths + emigrations
d. births + immigrations > deaths + emigrations
The antelope population has a negative population growth rate. So, the birth rate + immigration rate of the population will be less than the death rate and emigration rate. Thus, the correct option is C.
What is Population growth rate?Population growth rate is the increase or decrease in the number of individuals in a population or a dispersed group. Population growth depends upon several factors which include:
1. Birth rate: It is the total number of new births in a population. It increases the population growth.
2. Death rate: It is the total number of deaths in a population. It decreases the population growth.
3. Immigration: It is the entry of new individuals through migration into a population. It increases the population growth.
4. Emigration: It is the removal or migration of individuals from a population. It decreases the population growth.
Thus, a population with negative population growth rate will have birth rate and immigration less than the death rate and emigration rate.
Therefore, the correct option is C.
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What is the total amount of carbon removed
from the atmosphere each year by the
ocean and land plants?
Answer:
Carbon gets removed by a number of 65 GtC each year from the ocean and land plants.
Explanation:
What is a NEGATIVE effect of
genetic drift?
A. the development of a new species
B. the cause of a mass extinction
C. the loss of diversity within a population
D. the movement of organisms
The statement which represents a negative effect of genetic drift is that it involves the loss of diversity within a population. Thus, the correct option for this question is C.
What is Genetic drift?Genetic drift may be defined as a type of non-directional and random fluctuation in which allele frequencies of a population may change over generations due to chance or sampling errors. It takes place in all populations of non-infinite size.
This type of evolutionary force arises through a genetic bottleneck which develops when a population undergoes a drastic reduction in population size. So, the loss of genotypes of diversity within the population is one of the major negative effects of genetic drift.
Therefore, the correct option for this question is C.
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What might be one limitation of using a greenhouse as a model to represent a large farm?
The one limitation of using a greenhouse as a model to represent a large farm is that a greenhouse is not exposed to the same weather patterns as a large farm. Thus, the correct option is B.
What is a greenhouse?A greenhouse is a building with the glass walls and a glass roof. Greenhouses are the models which are used to grow plants, such as tomatoes and tropical flowers in a specific weather condition.
A greenhouse stays warm inside, even during the winter time. In the daytime, sunlight shines into the greenhouse and warms the plants and air that are present inside. A greenhouse helps in creating a microclimate that controls the temperature and humidity we want to expose the plants to.
Therefore, the correct option is B.
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Your question is incomplete, most probably the complete question is:
What might be one limitation of using a greenhouse as a model to represent a large farm?
A. A greenhouse is a controlled environment, and a large farm is not.
B. A greenhouse is not exposed to the same weather patterns as a large farm.
C. A greenhouse has a water system that can be controlled by the farmer
D. A greenhouse has more pests than a large farm.
Identify Structure D.
Phospholipids compose the cell membrane, arranged as a bilayer. Their heads can be in contact with water. Their tails are against each other in the interior of the membrane. Structure D represents the lipidic bilayer.
What is the composition of the cell membrane?
The cell membrane is composed of a lipidic bilayer, cholesterol, proteins, and glucans incrusted in between.
Lipidic bilayer
The lipidic bilayer is composed of phospholipids.
Phospholipids are amphipathic molecules with hydrophilic heads and hydrophobic tails.
Their hydrophilic polar heads are facing the exterior and the interior of the cells. Their hydrophobic tails are against each other, constituting the internal part of the membrane.Cholesterol
These molecules are incrusted in the membrane between the hydrophobic tails of lipids.
Proteins
Integral proteins (Transmembrane proteins or Monotypic integral proteins) Periferic proteinsCarbohydrates
Carbohydrates associate with lipids and proteins to compose glycolipids and glycoproteins.
They are mostly located in the external lipidic monolayer, facing the cell exterior.
In the image, structure D is representing the lipidic bilayer.
We can identify
the polar heads, facing the exterior and interior of the cell. They are represented as circles. the hydrophobic tails, facing each other in the intermembrane space. They are represented with thin lines.You can learn more about the lipidic bilayer at
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What is a common
ancestor?
A. the oldest living member of a family
or population of organisms
B. the first and oldest organism of a
new species
C. the first level of a family tree
D. the organism that was the
beginning of multiple new species as a
result of evolution this is answer
23. A student performs an activity in which a soluble colored substance is dropped in a beaker filled with water, as shown in the figure.
Which statement explains why the water in the beaker is a uniform color after a period of time?
A. The molecules of the colored substance move randomly through the water, with the majority moving from an area of high concentration to an area of low concentration.
B. The water molecules are altered and replaced by the molecules of the colored substance.
C. The molecules of the colored substance move randomly through the water, with the majority moving from an area of low concentration to an area of high concentration.
D. The colored substance molecules are altered and replaced by the molecules of the water.
Answer: A. The molecules of the colored substance move randomly through the water, with the majority moving from an area of high concentration to an area of low concentration.
Explanation: When a substance is dissolved in water or any other substance, the molecules will move to an area they have not. When food coloring is placed in water, it moves to areas it hasn't touched because it has to expand.
If we start with 60 atoms of uranium-238 how many would remain after 4,470,000,000 years?
Answer:
30
Explanation:
4,470,000,000 is 4.47 billion years
half-life of uranium-238 is 4.468 billion years
60 divided by 2 is 30
pshspsd202org
wikipedia
After approximately 4,470,000,000 years, there would be approximately 30 uranium-238 atoms remaining from the initial 60 atoms as half-life of uranium-238 is approximately 4.5 billion years.
To calculate the number of remaining uranium-238 atoms after a given time,
N = N0 × [tex](1/2)^(^t^ /^ T^)[/tex]
Where: N = Number of remaining atoms N0 = Initial number of atoms t = Time that has elapsed T = Half-life of the substance
In this case, N0 (initial number of atoms) is given as 60, T (half-life of uranium-238) is 4.5 billion years, and t (time elapsed) is 4,470,000,000 years.
Let's plug these values into the formula:
N = 60 ×[tex](1/2)^(^4^,^4^7^0^,^0^0^0,^0^0^0^/^4,^5^0^0^,^0^0^0,^0^0^0^)[/tex]
Calculating this,
N ≈ 60× [tex](1/2)^0^.^9^9^3^3[/tex]
N ≈ 60 × 0.5005
N ≈ 30.03
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TRUE OR FALSE
Genetic disorders in human mitochondrial DNA cannot be inherited via
maternal inheritance.
why carbohydrate digestion occurs first in mouth?
The digestion of starch carbohydrate is initiated in mouth due to the action of starch digesting enzyme ptyalin or salivary amylase present in saliva secreted by salivary glands. Enzymatic hydrolysis helps in the partial breakdown of starch (polysaccharide) into maltose and isomaltose (disaccharides) and small dextrins called 'limit' dextrins. Nearly 30% of the starch is hydrolysed in the oral cavity because of the shorter time the food is retained here
due to the action of starch the carbohydrate digestion occurs first in mouth
2. Using the sources given, identify the total number of negatively charged particles in this atom.
A. 22 electrons
B. 18 protons
C. 22 neutrons
D. 18 electrons
Explanation:
Ans: D
by counting the no of electrons in the diagram we have 18 negatively charged particles (electrons)
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Atoms have negatively charged electrons. An atom's electrons balance the nucleus' protons' positive charge. By counting the red dots, we can say that there's total 18 electrons.
What is an atom?An atom is a subatomic particle of matter that serves as the fundamental unit of definition for each individual chemical element. Atoms are made up of a positively charged nucleus in the center that is surrounded by one or more electrons that have a negative charge. The nucleus has a positive electric charge and may house one or more relatively massive particles called protons and neutrons.
The positive charge that is carried by the protons in the nucleus of an atom is countered by the negative charge that is carried by all of the atom's electrons working together.
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