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3 years ago

True or False: Meiosis halves the chromosome number, whereas mitosis maintains the same chromosome number.

Biology

1 answer:

AleksandrR [38]3 years ago

8 0

Answer:

True

Explanation:

Meiosis is the kind of cell division that results in the production of daughter cells with each cell having half number of chromosomes as the parent cell. Meiosis is the cell division employed by reproductive cells to produce gametes/sex cells. Meiosis occurs in two stages i.e. Meiosis I and II. The chromosome number reduces by half in gametes in order to ensure that after fertilization of both male and female gamete, the resulting organism has the correct set of chromosomes. e.g diploid organism produces haploid gametes which fuses to produce a diploid organism again.

Mitosis is another type of cell division that results in identical daughter cells. They are identical in the sense that they possess the same number of chromosomes as the parent cell that divided. For example, a diploid cell undergoes mitosis to produce two diploid daughter cells.

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Science: Match the parts of the eye to their functions: Structure: 1. Iris 2. Cornea 3. Lens 4. Retina 5. Photoreceptors 6. Opti

alexgriva [62]

Answer:

iris - b

cornea - f

lens - e

retina - c

photoceptors - b

optic nerve - h ( definately know dis one)

rod cells - e

pupil - a

cone cells -g

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Explanation:

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3 years ago

Imagine that beak color in a finch species is controlled by a single gene. you mate a finch homozygous for orange (pigmented) be

forsale [732]

Codominance or incomplete dominance is the answer in this question. This pattern of color expression is most likely to be an example of incomplete dominance or codominance. Codominance is defined as a form of dominance wherein the alleles of a gene pair in a heterozygote are fully expressed. Incomplete dominance on the other hand is a form of intermediate inheritance in which one of the allele for a specific trait is incompletely expressed over its paired allele.

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3 years ago

Photopigment genes are located on the X chromosome. Color blindness occurs when an individual has missing or damaged alleles. A

Hunter-Best [27]

The probability that their son exhibits the 'color blind' trait is 0%. It is a type of inheritance linked to the X chromosome.

<h3>Inheritance linked to the X chromosome</h3>

In men, the patterns of inheritance linked to the X chromosome don't follow conventional mendelian inheritance because men have only one X chromosome.

Conversely, women have two X chromosomes, thereby the inheritance pattern resembles Mendelian inheritance.

It is important to highlight that color blindness is a recessive trait on the X chromosome.

In this case, the mother is a carrier, thereby the probability of passing this trait as a carrier to her son is 50%, whereas the father is normal, thereby the probability of passing this trait to his son is 0%.

Learn more about inheritance linked to the X chromosome here:

brainly.com/question/1020249

4 0

2 years ago

_______ part of our brain generates signals for involuntary action.

Ksivusya [100]

Answer:

the brain stem

Explanation:

the structures of our brain stem, in conjunction with our spinal cord (not a part of our brain) is responsible for involuntary action. Not sure if it generate signals, but hey it's better than no answer.

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3 years ago

Read 2 more answers

Classification Activity Worksheet Instructions: Read each myth (untruth). Reword it to make a factual statement. Then, give two

NeX [460]

Answer:

I don't think there is a #6, so I'm gonna answer the "Mammals and plants don't belong in the same domain".. If this is the wrong one I can help with the one you actually need help with.

Explanation:

Myth: Mammals and plants don't belong in the same domain.

Fact: Mammals, being a group of animals do not belong in the same domain as plants. Evidence: All living organisms are divided into three domains: Bacteria, Archaea and Eukarya. All of the organisms that possess a eukaryotic cell, plants, animals, protists, and fungi are in the Eukarya domain. Therefore, mammals and plants belong to the same domain, the Eukarya domain.

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3 years ago