24. Which of the following complicate the process of mapping of a gene that caus

Question

24. Which of the following complicate the process of mapping of a gene that causes an i nheritable human disease? Mutant genes that cause genetic number of families. a. diseases are rare and are observed in only a small Segregation of alleles cannot be detected easily because the number of offspring per human family is relatively small. Many mutant genes are recessive and cannot be detected phenotypically in heterozygotes c. d. e. Testcrosses and backcrosses cannot be performed. More than one of the above.

Explanation / Answer

24. The answer is e. More than one of the above.

The answers are
a. Mutant genes that cuase genetic diesease are rare and are observed in only a small number of families.

b. Segregation of alleles cannot be detected easily because the number of offspring per human family is relatively small.

c. Many mutant genes are recessieve and cannot be detected phenotypically in heterozygotes.

d. Testcrosses and backcrosses cannon be perfomred.

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