An individual with the genotype AaBb produces four different gametes in equal proportions. This is a demonstration of ________
A) the chromosomal theory of inheritance
B) Mendel's law of independent assortment
C) linkage
D) Mendel's principle of segregation
B
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The use of bacteriophages to map bacterial genes is called ___________
A. generalized transduction B. cotransduction C. transformation D. conjugation E. none of the answers are correct
Answer the question using the accompanying figure. Which number identifies the structure that carries supplemental
genetic information?
a. 1 b. 2 c. 3 d. 4 e. 5
Extinction occurs when
a. No member of a species can adapt to changing conditions before it dies. b. no member of a species has the alleles necessary to survive and reproduce when conditions change. c. members of a species do not realize that conditions are changing until the gene pool is greatly diminished. d. the changing conditions fail to produce new alleles to save the species. e. All of the answer choices are correct.
The immune system uses which of the following mechanisms to generate antigen receptor diversity?
a. stepwise rearrangements of Ig-encoding genes b. rearrangement of heavy- and light-chain genes in B cell development c. somatic recombination d. all of the above