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Yakvenalex [24]
3 years ago
7

The atomic number of krypton (Kr) is 36, and its mass number is 84. How many neutrons does it have?

Biology
2 answers:
pav-90 [236]3 years ago
5 0

Answer:

C)48

Explanation:

pluto is never wrong

noname [10]3 years ago
3 0
I believe the Answer is B
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You are working with a 125 million bp human chromosome (1 centimorgan = 1 million bp), and wish to use markers to map newgenes v
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Answer:

After every 0.192 centimorgan

Explanation:

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In mice, the ability to run normally is a dominant trait. Mice with this trait are called running mice (R). The recessive trait
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Answer:

Parental genotypes: RrBb, RRBB

Offspring phenotype: Running and black hair

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Given, Running (R) is dominant over waltzing (r)

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Parent 2: Homozygous running, homozygous black = RRBB

When they mate ( RrBb X RRBB ) :

Gametes produced by RrBb = RB, Rb, rB, rb

Gametes produced by RRBB = RB

Offspring:

        RB          Rb         rB        rb

RB   RRBB    RRBb    RrBB    RrBb

All offspring mice will be running mice and will have black hair because all the four types of genotype at least have one dominant allele for both the genes.

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