Answer:
Father's genotype: Xd,Y
Mother's genotype: XD,Xd (This is the only possible genotypes because if we assume that the genotype is XdXd, then all the children will be sick)
Possible genotypes are: XDXd, XDY,XdXd,XdY
Name 3 Abiotic (non-living) factors in the environment.
Answer:
Soil, air & water are 3 abiotic factors in the environment.
some examples could be rocks, dirt, water
_________ are weak bonds that hold the two strands of DNA together, but also allow the DNA to separate and replicate.
Answer:
hydrogen bonds!
Explanation:
taking the exam rn :)
Why are only some plants sexually produced?
Answer:
Explanation:
This is because some plants grown by seeds which is as a result of fertilization or fusion of the male and female gametes. Seeds carries the genetic information. These sexual reproduction lead to formation of offsprings which have different genetic information from the parent or that are genetically different from the parent and these help them to survive or thrive and adapt in various environment.
Which kinds of light can the greenhouse
gases in the atmosphere absorb? Which kinds
pass right through?
Answer: That energy reaches Earth mainly in the form of visible, infrared, and ultraviolet light; most of that energy passes through the atmosphere to warm the surface. The Earth absorbs this energy from the Sun and reemits it in the form of invisible infrared light. This energy is trapped by the greenhouse effect.
Explanation:
What is the best reason a present-day organism is VERY similar to its ancestor?
Answer:
The environment that it lives in has not changed much, therefor there is no need for evolution to take place.
Explanation:
describe how the functions of proteins differ from the functions of carbohydrates
CAN SOMEONE PLZ ANSWER THIS
Answer:
b
Explanation:
Which of the following would be considered the strongest evidence that two species are related to one another?
a. common structures
b. shared taxon
c. similar genes
d. same extinction pattern
Which plant cells contain half the DNA from one parent plant
Answer:
pollen and ovule
Explanation:
Pollination happens when a pollen grain, which contains half the genetic material needed to produce a new seed, is transported to an ovule.
What are the genetic makeup of pollen and ovule?The megagametophyte is found in the ovule, whereas the pollen grain is the microgametophyte.
Pollen grains are male reproductive structures that give rise to sperms, whereas ovules are female reproductive structures that give rise to egg cells. This is the primary distinction between pollen grains and ovules.
A flower has more pollen grains than ovules so that the pollen has a better chance of reaching the ovules.
Where it will have a better chance of causing them to produce seeds, which will lead to the growth of additional plants.
The portion of a flower that contains the egg and which supplies the other half of the DNA needed for a viable seed to form.
Therefore, pollen and ovule plant cells contain half the DNA from one parent plant.
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In which part of the cell cycle do the mitotic spindles assemble, bind to chromosomes, and move the sister chromatids apart?
Answer:
M phase
Explanation:
Answer:
b
Explanation:
In a cladogram, what represents the most recent common ancestor shared by a clade?
a. a mark by the clade's derived character
b. the overlapping of one clade upon another
c. the longest branch
d. the node where branches meet
Answer: It's D
Explanation:
As demonstrated by the carbon cycle, matter on Earth is generally A. released into space once it reaches the atmosphere. B. recycled continually through the spheres of the Earth. C. created and destroyed by the basic life processes of organisms. D. absorbed into the Earth's core where it can no longer be used.
Answer:
B
Explanation:
As demonstrated by the carbon cycle, matter on Earth is generally recycled continuously through Earth's regions. So, the correct option is B.
What is Carbon cycle?The carbon cycle is defined as the biogeochemical cycle by which carbon is exchanged between the biosphere, the pedosphere, the geosphere, the hydrosphere, and the Earth's atmosphere, where carbon is the main component of organic compounds, as well as carbon deposits such as limestone which is a major component of many minerals.
Photosynthesis, decomposition, respiration and combustion from the atmosphere to plants and living things are the steps of the carbon cycle. For example, carbon is a pollutant in the atmosphere in the form of carbon dioxide.
Therefore, the correct option is B.
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What region of the brain is the corpus callosum?
ОА
ОВ
Ос
OD
Answer:
The correct answer is C ❤️
Which of the following is the correct definition of a wave? A disturbance that transfers energy from one place to another ocean waves a crowd of people waving in a stadium
someone please answerrrr
Answer: Fortune tellers
Explanation:
Which of the following are classified as
moderately-restricted?
A. National Historic Sites
B. National Wildlife Refuges
C. National Monuments
D. National Mall
How could you survive an owl attack if you were their prey?
Answer:
Hold something tall like an umbrella because they usually attack the top part of you
Explanation:
Answer:
start a big fire in the entrance of cave get inside cave
I WILL GIVE BRAINLIEST IF SOMEONE ANSWERS WITHIN FIVE MINUTES!!!
Which of the following is NOT an output for cellular respiration? Select all that apply.
glucose
oxygen
carbon dioxide
water
ATP
solar energy
Answer:
Glucose, oxygen, and ATP (energy)
Explanation:
Hii! It finally let me put the answer XD. Here are the notes i had on this:
Inputs - Carbon dioxide, water, and sunlight (solar energy)
Outputs - Glucose (food), oxygen, and ATP (energy)
I hope that this helps you out!! :)
Which geometric solid is the best model for these cells?
GOED DOO
A. A sphere
B. A cube
C. A right circular cylinder
D. A square pyramid
Answer:
Mostly likely a CUBE
Explanation:
So B ( :
I NEED HELP ASAP! Which of the following is true of variation?
Select one:
a.
It is necessary for natural selection.
b.
It exists in almost all populations.
c.
It is caused by mutations and sexual reproduction.
d.
All of the choices are correct.
Answer:
all of them are correct
Variations are essential for natural selection to occur. It exists in almost all populations. It is caused by mutations and erotic reproduction. Hence, all of the choices are correct.
What do you mean by Mutation?A Mutation may be defined as the sudden, stable, and inheritable changes in the genetic material of an organism.
Variations provide the favorable traits that induce natural selection. Variations are caused by mutations, gene flow, and erotic reproduction. It exists in all life forms present on the earth.
Sometimes, variations decide the relative fitness of an organism and thus natural selection occurred.
Therefore, the correct option for this question is D.
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please someone help! science question i willl give brainlest plesee don’t ignore
THANK YOU
Answer:
the answer is 2 (ii)
Explanation:
same number of black and white circles on both sides of the equation, so it shows the mass is conserved.
Temperatures at which liquids change to solids is called the _________________.
Group of answer choices
freezing point
no point
melting point
condenstation point
Answer:
freezing point
Explanation:
HELP HELP
Based on the information in the table, which of the following describes alleles I and IB?
A. The IA and I alleles show sex linkage.
B. The IA allele is recessive to the IB allele.
C. The IA allele is dominant to the IP allele.
D. The 1A and I alleles show codominance.
Answer: The answer is D.) codominance.
According to the table IA and IB are showing codominance character. If a person has both IA and IB alleles and has blood group AB, hence option D is correct
What is a blood group?The blood group is determined by the gene which produces, surface antigens on the red blood cells and antibodies present in the plasma.
In the blood group having i gene does not produce any sugar, while the IA gene produces sugar which results in the A blood group having antibodies against another blood group which is anti-B, and a person having the IB gene produces blood group B and has antibodies anti-A.
If having both IA and IB, it shows codominance, and having blood group AB does not produce any antibodies, while ii produces O blood group and antibodies anti-B and anti-A.
Therefore, IA and IB, show codominance.
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Assume that this is one of Santhi's chromosomes obtained from a sample of her blood. This chromosome is composed of two chromatids joined by a centromere. Which of the following statements is INCORRECT? The cell that contains these sister chromatids must be diploid. The sister chromatids were formed by replicating a single chromatid. The sister chromatids were joined by fertilization, bringing together a maternal and paternal chromatid.
Answer:
The sister chromatids were joined by fertilization, bringing together a maternal and paternal chromatid.
Explanation:
what genetic changes need to be made in stem cells to develop into kidney cells
Explanation:
Genetic manipulation of stem cells has to be introduced into a kidney cell or nephron. Transfection utilizes the physical injection of stem cells into a kidney cell. Hope this helps...
It is necessary to incorporate genetic manipulation of stem cells into a kidney cell or nephron. The process of transfection involves physically injecting stem cells into kidney cells.
What is transfection?
Transfection is a popular technique for introducing foreign nucleic acids into cells during laboratory cell growth. It is an effective analytical tool that enables the investigation of the cell's gene activities and gene products.
Animal cells can only be transfected with DNA or RNA using non-viral methods that momentarily crack open pores in the cell membrane to let nucleic acids inside.
It also covers non-chemical techniques like electroporation in addition to chemically based goods like calcium phosphate, cationic polymers (PEI), and liposomes.
Therefore, It is necessary to incorporate genetic manipulation of stem cells into a kidney cell or nephron. The process of transfection involves physically injecting stem cells into kidney cells.
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If you cross two heterozygous Yy pea plants, what proportion of the offspring will be the dominant color yellow?
Answers: 50%, 25%, 75%, 0%
Answer:
The possible genotypes are: YY, Yy, Yy, yy
The proportion of the offspring with the dominant color is 75%
The cross two heterozygous Yy pea plants, the proportion of the offspring will be the dominant color yellow is the possible genotypes are: YY, Yy, Yy, yy. The proportion of the offspring with the dominant color is 75%. Thus, option C is correct.
What are the cross between heterozygous?If you cross a heterozygous organism with another heterozygous organism, pair two Tt and Tt. Below is a punnet square to show the result:
T t
T TT Tt
t Tt tt
This actually means that you have two heterozygous recessive and one homogenous dominant and one homogenous recessive. Genetics has known as the study of the heredity as well as the variation of the inherited the characters and the genetic properties and the organism's feature and the characteristics. It has also known as the branch of biology that deals with the study of genetic variation, genes, and the heredity in the organisms.
Therefore, the cross two heterozygous Yy pea plants, the proportion of the offspring will be the dominant color yellow is the possible genotypes are: YY, Yy, Yy, yy. The proportion of the offspring with the dominant color is 75%. Thus, option C is correct.
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How do sprinters receive enough energy to sprint?
Answer:
As the fastest way to get ATP for muscle contraction, the phosphagen system is the predominant energy system used for races lasting up to 10 seconds. The muscles of sprinters like Maurice Greene, who has run 100 meters in 9.79 seconds, are great at producing ATP via the phosphagen system.
Explanation:
Please help me with biology assignment!
Explanation:
If I read this correctly; The question that is check marked is regarding the scalp region.
The hair follicle that resides in the dermal layer of the skin & scalp.
The follicle interacts with hormones, neuropeptites & immune cells. There are 20 different cell types each with different functions...
if someone is born with a defective gene,it will be found in
a. all DNA in their body
b. in some cells
c. only their nervous system
Answer:b
Explanation:
It will only be found in some cells because when a mutation is formed it will most likely not be able to spread
Which statement best expresses the relationship between the three
structures represented below? *
1)DNA is produced from protein absorbed by the cell.
2)Protein is composed of DNA that is produced in the cell.
3)DNA controls the production of protein in the cell.
4)Cells make DNA by digesting protein.
Answer:
3
Explanation:
dna give instructions for the production of amino acids, polypeptides are made of amino acid chain,