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Anit [1.1K]
3 years ago
15

if a plant cell in G1 phase with 12 chromosomes undergoes mitosis, how many chromosomes would a daughter cell have

Biology
1 answer:
MariettaO [177]3 years ago
8 0
I have my notes here about cell division which could hep you solve the problem on your own.

The first period of the first phase (interphase) of the cell cycle is G1, followed by S and G2, and finally by the mitotic phase.

During G1, the ploidy (the quantity of DNA molecules in the cell) can be represented by the formula 2n (n is the number of DNA molecules in a gamete cell of a given species). During S, DNA duplicates and the quantity of genetic material increases from 2n to 4n. During G2, the quantity remains the same: 4n. After the mitotic phase, the quantity of genetic material decreases to 2n in each daughter cell.

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Which of the following affects an entire chromosome, not just a gene or base pair? A. Deletion B. Missense C. Trisomy D. Inversi
coldgirl [10]

Answer:

I believe the answer is A) Deletion

Explanation:

8 0
4 years ago
Albinism is a recessive trait. A man and woman who both have normal pigmentation have one child out of three who has albinism (w
scoray [572]

Albinism is a recessive trait. A man and woman who both have normal pigmentation have one child out of three who has albinism (without melanin pigmentation). The genotypes of this child's parents: (C) Both parents must be heterozygous.

Albinism is an autosomal and not a sex-linked recessive trait.

Only homozygous recessive (aa) offspring will be albino, both homozygous dominant (AA) and heterozygous dominant (Aa) offspring will possess the normal phenotype.

Since it is given that both the father and the mother have normal pigmentation, thus they must both have the genotype Aa.

From the Punnett square it can be observed that a cross between the parents would result in the creation of three offspring with the normal genotype (one with AA and two with Aa) and one offspring with the genotype aa (albino).

To learn more about Albinism here

brainly.com/question/19538962

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5 0
2 years ago
An athlete engages in some minor misbehavior. how should the coach respond to the athlete's misbehavior?
Serhud [2]
Public confrontation must be avoided as possible. The coach can remove the athlete from the practice or competition and misbehavior must be addressed privately. Athlete can have time to reflect on what did they do. This will allow realization on their mistake and the situation happened. With this, they will not loss their self esteem and confidence which is needed for their future games or during practice. Athletes are intelligent and they usually address if they have did a mistake. 
7 0
3 years ago
Some careers involve daily exposure to dangerous situations, which can lead to emotional burnout. A person with damage to the am
Juliette [100K]

The limbic system is a region in the brain consisting of the thalamus, the hypothalamus, the hippocampus, and the amygdala.

When a person has amygdala damage, it would be expected to disrupt the integration of fear.

So, this kind of person will be efficient under fear situations avoiding emotional burnout.

Careers like bridge climbing or skydiving instructor are good for this kind of person.

6 0
3 years ago
In cows , when a pure-breeding (h) white cow is crossed with a pure-breeding (h) red cow , their off spring are spotted red and
Dmitry [639]

Answer:

Codominant

Explanation:

Often, when an individual has two different alleles that determine its certain trait, the effect of the dominant allele will be expressed, while the effect of the recessive allele will be hidden. For example, this is how we inherit eye color.

However, it isn't always like this. Sometimes, the effects of both (different) alleles are expressed. This phenomenon is called codominance, and the scenario you were given is an example of it.

4 0
3 years ago
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