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Stels [109]
2 years ago
15

What is the major function of asters of centrosome in a cell ?

Biology
1 answer:
Amiraneli [1.4K]2 years ago
7 0
The answer is formation of spindle fibers.

Asters (Latin word for stars) of centrosomes are microtubules and are formed around centrosomes during mitosis. During prophase, asters and centrosomes move to the opposite sides of the cell. During metaphase, asters extend and connect to the centromere of chromosomes. During anaphase, those microtubules pull the chromatids apart to the centromeres on the opposite sides of the cell.
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In the family tree below, people with the recessive trait of attached earlobes
madam [21]

Answer:

C. It is a male with atleast one dominant allele

Explanation:

In the given pedigree, the two normal parents of the generation I have one daughter with the attached earlobe. Since the trait is recessive, the daughter should be homozygous recessive to express the trait. The genotype of the daughter (shaded circle in generation II) is "aa". To have a daughter with "aa" genotype, both the parents should have one copy of "a" allele. So, the genotype of both parents is "Aa".

In generation II, individual A is non-shaded square. Squares represent males in a pedigree. Since its not shaded, it does not have attached earlobe. Both the parents are heterozygous dominant for attached earlobes (Aa x Aa = 1/4 AA : 1/2 Aa : 1/4 aa). The genotype of this individual may be AA or Aa.

5 0
3 years ago
How will when the ice melts and the animals begin to thaw affect the amount of co2 in the atmosphere
klio [65]

Answer:

The process of decomposition increases the amount of carbondioxide gas in the atmosphere.

The process of decomposition greatly affect the amount of carbondioxide in the atmosphere because in the process of decomposition, carbondioxide is released in the atmosphere which is added to the carbondioxide present in the atmosphere.

This results in more warm temperature of the earth atmosphere so we can conclude that the process of decomposition increases the amount of carbondioxide gas in the atmosphere.

Explanation:

I hope this helps you!!!.....

6 0
2 years ago
A scientist analyzed a segment of DNA from a human chromosome and found that the percentage of cytosine molecular bases (C) was
Pachacha [2.7K]

Answer:

16%

Explanation:

3 0
2 years ago
Why is mating between blood relatives discouraged from a genetic perspective?
algol [13]

Inbreeding is simply defined as the mating of relatives. It is a mating system in which individuals carry alleles that originated from a common ancestor. Inbreeding is considered a problem in humans because inbreeding increases the chances of receiving a deleterious recessive allele inherited from a common ancestor.

3 0
2 years ago
Read 2 more answers
I need help with 1,2,4,5,6, and 7. I already did 3 :)
nirvana33 [79]

Answer:

Answers, in order:

40, Temperature steeply decreases, 2, Effect decreases steeply, 5 and 9, 10

5 0
2 years ago
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