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Marat540 [252]
1 year ago
9

What do 2 sister chromatids make?

Biology
1 answer:
ad-work [718]1 year ago
5 0

The 2 sister chromatids join together at the centromere to make a chromosome.

Centromere can be seen as the highly constricted region in the chromosome. The spindle fibers also attach with the chromosome at this region during the process of cell division. The DNA at the centromere is highly repetitive.

Chromosome is the most condensed form of DNA. It is comprised of DNA and the histone proteins. The histone proteins play a major role in the formation of chromosome. Each chromosome has two equal copies called sister chromatids that are attached together at the centromere. The ends of sister chromatids are called telomeres.

To know more about centromere, here

brainly.com/question/11663152

#SPJ4

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A gene has 2 alleles, R & B, List the possible genotypes? I also need help with questions 5, 6, 7 and 8 please help! Pls loo
irakobra [83]

Answer:

5.) The possible genotypes should be: RR RB BB ( if the could for the same proteins)

6.) Frequency of R: 0.5

7.)Frequency of R: 0.5

8.)Frequency of R: 0.375

Explanation:

5.) If R and B code for the different forms of the same protein then they are only a few possible out comes

6.) First calculate the total alleles in population

allele R= 40

Allele B=40

total allele = R+B= 40+40

=80

Now to find allele R frequency is:

(Total R alleles) / (Total allele in pop)

40/80=

0.5

7.)Calculate the total alleles

Alleles from for R

RR= 10

R=10x 2= 20

Multiply the value by 2 because there are 2 R alleles present in

RB=20

R=20

Number doesn't change there is only 1 R allele

Total R=20+20

=40

Alleles For B

BB=10

B=10×2

=20

Same thing here, two B alleles together so multiple by 2

RB=20

B=20

Total B= 20+20

=40

Total alleles in pop add

40+40

=80

Frequency of R

Total of R/Total Alleles

=40/80

=0.5

8.)Repeat the same thing in 7 but use different numbers

RR=10

R=10x2

=20

RB=10

R=10

Total R= 20+10

=30

5 0
3 years ago
Ok So I know the answer is B but can someone tell me why it is correct plz!
quester [9]
It is correct because the earth is 1 AU away from the sun, I actually got the same question. Hope this helps!
8 0
3 years ago
Cells need oxygen to make energy oxygen rich blood is transported through structures that are small and thin
yuradex [85]

Capillaries are small, thin blood vessels that connect the arteries and the veins. Their thin walls allow oxygen, nutrients, carbon dioxide and waste products to pass to and from the tissue cells.

Hope this helps you

Pls mark it as brainliest

3 0
3 years ago
A (Blank) is a specific sequence of nucleotides in a strand of DNA that codes for a specific sequence of amino acids.
Kruka [31]
Gene i’ve had the test before
4 0
3 years ago
________ are organisms that are able to convert the sun's energy into usable energy. (2 points)
ivann1987 [24]

Answer:

C. Producers

Explanation:

Producers (plants) can turn the sun's energy into usable energy by photosynthesis. They are at the bottom of the food chain; all of our energy comes from them. :)

7 0
4 years ago
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