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ASHA 777 [7]
3 years ago
11

How is cell divison controlled?

Biology
1 answer:
Sonja [21]3 years ago
8 0
Cell controls on division contact with other cells once DNA (cell directions) is copied, cell divides sequence of steps
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A geneticist crossed pure breeding black mice with pure breeding brown mice. All the 992 mice in the F1 generation had black coa
uysha [10]

Answer:

C. An approximately three-to-one ratio of black to brown coated mice in F2 is accounted for by the black allele being dominant over the brown allele

Explanation:

Assuming the black genotype is BB and the brown genotype is bb.

At F1:

                 BB   x   bb = All Bb (black)

At F2:

                  Bb   x   Bb = BB (black), 2Bb (Black), bb (brown)

Th ratio of black to brown is 3:1

961 black : 317 brown is approximately 3:1.

Hence, the correct option is C.

<em>An approximately three-to-one ratio of black to brown coated mice in F2 is accounted for by the black allele being dominant over the brown allele</em>

4 0
3 years ago
URGENT
zepelin [54]

Answer:

f c d e b a

Explanation:

I try my best

8 0
3 years ago
A student is labeling a diagram of mitosis. Which description should the student label as metaphase?
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The answer to the question is option C

8 0
2 years ago
The organisms found in rivers and streams vary based on location. Please select the best answer from the choices provided T F
Margaret [11]
True.

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8 0
3 years ago
Read 2 more answers
Which statement must be true about the organism?
Artyom0805 [142]

Answer:

If we're talking about human organism then

It is multicelular.

It has a backbone.

It contains cells without nuclei.

Explanation:

human as almost all animals in the world is multicellular meaning they have more than one cell (some bacterias has only one)

backbone or "vertebra" is the is the bone of our back who supports us making us stand up.

Yes our cells contain nuclei , The nucleus contains nucleoplasm, a component where it is immersed in genetic material and as structures that are important for the performance of its functions

And finally our body don't have radial symmetry, radial symmetry is when you can "cut" the image in more than one piece keeping the symmetry in every side, some animals with radial symmetry are the starfish and the jellyfish.

5 0
3 years ago
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