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3 years ago

100 Points HELP ASAP

Biology

2 answers:

Reptile [31]3 years ago

6 0

Answer no 1)

The cross between a homozygous red bull (RR) and a heterozygous red cow can be made as follows:

R r

R RR Rr

The results from the experiment show that 50% of the genotype will be homozygous for red colour and 50% of the population will be heterozygous for the red colour. The phenotype will be 100% red.

Answer No 2)

Cross between a heterozygous red bull (Rr) and a heterozygous red cow (Rr)

can be shown as follows:

R r

R RR Rr

r Rr rr

The results show that the genotype will be 25 % homozygous dominant, 50% heterozygous and 25% homozygous recessive. The phenotype will show 75% dominant trait (red) and 25% recessive trait (white).

Answer No 3)

The cross between a homozygous white bull (rr) and a homozygous white cow (rr) can be shown as follows:

r r

r rr rr

The results from the punnet square show that the genotype of all the offsprings will be homozygous recessive (rr) and the phenotype will be recessive ( white).

hjlf3 years ago

6 0

Answer:

The results from the punnet square show that the genotype of all the offsprings will be homozygous recessive (rr) and the phenotype will be recessive ( white).

Explanation:

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3 years ago

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Further Explanation:

Carbon, is the backbone of all biological life on Earth. It contains 6 electrons, with 4 on its valence shell, and thus, readily forms covalent bonds with other elements. Covalent bonding involves the sharing of electrons; in nature, this occurs with hydrogen,oxygen, nitrogen, and phosphorus as highly flexible single bonds capable of rotation; rigid, non-rotating double; and very strong triple bonds. Carbon compounds form rings, and long branched chains- thus, carbon can form macromolecules in nature.

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4 years ago

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