Which process(es) can generate recombinant gametes? (Select all that apply.)
A) crossing-over between two linked heterozygous loci
B) independent assortment of two unlinked heterozygous loci
C) segregation of alleles in a homozygote
D) crossing-over between two linked homozygous loci
A) crossing-over between two linked heterozygous loci,
B) independent assortment of two unlinked heterozygous loci
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Egg whites consist primarily of water and the protein albumin. When you fry an egg, why does the egg white turn from clear to white?
A. The protein becomes dissociated. B. The protein acquires tertiary structure. C. The protein becomes denatured. D. The protein becomes dehydrated.
The manta ray feeds on:
a. larger fish. b. surface and diving birds. c. squid. d. small fish and plankton. e. other rays.
Which stage(s) show(s) the diploid portion of the
life cycle? a. A b. B c. C d. D e. D and E
Recall that in mice the Igf2 gene exhibits genomic imprinting where the maternal allele is silenced by DNA methylation. What is the probability that a mouse pup (male or female) from the son a homozygous dwarf mother (Ifg2- Igf2-) and a heterozygous normal-size father (Igf2 Igf2-) is normal-sized as well?
A. 100% B. 75% C. 50% D. 0% E. 25%