Answer:
The percentage for the homozygous dominant trait would be 25%. in the F2 generation.
Explanation:
Suppose true-breeding parents with the different alleles for the same trait are TT (dominant) and tt (recessive) than the cross of these parents will produce gametes T, T and t, t respectively.
These gametes will form offspring ultimately. Produced offspring will be TT (homozygous dominant), Tt (heterozygous dominant), Tt (heterozygous dominant) and tt (homozygous recessive).
Thus, the percentage of dominant homozygous phenotype in F2 would be 25% in respect of the dominant allele which is TT.
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The answer to your question in Psoriasis
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Answer: Fourth option is correct.
Explanation:
Germ theory of disease stated that Diseases are caused by the presence and action of specific microorganisms inside the body.
It says that the pathogens are responsible for causing diseases.
These pathogens are too small to see without the use of microscope attacks human, animals and other hosts.
That pathogens caused infection due to which diseases occur in the body.
Hence, Fourth option is correct.
The correct answer is A) Salt is pulled apart into two ions by the polar water molecules, and sand is not.
This happens because salt has both positive and negative ends that are attracted by the polar molecules of water.
