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dedylja [7]
3 years ago
7

How many neutrons does element X have if its atomic number is 36 and its mass number is 91?

Biology
1 answer:
Viefleur [7K]3 years ago
5 0
55 is the answer
!!!!!!!!!!!!!!!!!!!!!!!!!!
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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]

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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:

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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>

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4 years ago
What is regional metamorphism
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In aerobic respiration, what is the direct source of energy that atp synthase uses to synthesize atp?
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