Random segregation of organelles during cell division is likely to result in an increased rate of which of the following?
A) incomplete penetrance
B) dominant loss-of-function mutations
C) dominant gain-of-function mutations
D) chromosomal duplication mutations
E) chromosomal deletion mutations
A
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What is a karyotype?
A. A complete sequence of our DNA B. A picture of all the chromosomes in one person's cell C. A list of all the genes on our chromosomes D. A list of all the mutations in our chromosomes
True or False: many of the intermediates in the biosynthesis of chlorophyll are themselves capable of absorbing light energy
A. true B. false
How are binary fission and mitosis different?
a. Binary fission is found in eukaryotes, and mitosis is found in prokaryotes. b. Binary fission is used for repair, and mitosis is not. c. Binary fission is found in prokaryotes, and mitosis is found in eukaryotes. d. Binary fission is a division of the nucleus, and mitosis is a division of the cytoplasm.
Assuming a typical monohybrid cross in which one allele is completely dominant to the other, what ratio is expected if the F1s are crossed?
A) 1:1 B) 4:3 C) 2:1 D) 3:1 E) 3:2