When wild-type offspring are produced from a cross between parents that both display the same recessive phenotype, this illustrates the genetic phenomenon of _______

A. simple recessive alleles
B. incomplete penetrance
C. complementation
D. gene dosage
E. a spontaneous mutation


C

Biology & Microbiology

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A person with the genotype XXXY would be expected to have how many Barr bodies?

A) 0 B) 1 C) 2 D) 3 E) 4

Biology & Microbiology

Mendel crossed true-breeding plants having yellow peas with true-breeding plants having green peas. The resulting

plants all had yellow peas. An F1 cross resulted in 3/4 of the plants having yellow peas and 1/4 of the plants having green peas. What does this tell you about the alleles for color?

a. yellow is usually the dominant color, but sometimes green can be dominant b. green is the dominant color c. yellow is the dominant color d. yellow is the recessive color e. yellow and green are codominant

Biology & Microbiology

Researchers first discovered the existence of hormones by studying secretions from the ________.

A. adrenal glands B. pancreas C. gonads D. thymus gland E. pineal gland

Biology & Microbiology

A hybrid zygote created by the fusing of gametes from different species may grow into a sterile adult incapable of producing future offspring. This is an example of__________

What will be an ideal response?

Biology & Microbiology