During HIV reproduction, spike glycoproteins
A. do not enter the cell with the virus.
B. are released into the cytoplasm by cellular enzymes.
C. are embedded in the infected cell membrane.
D. are assembled into the virus along with reverse transcriptase.
E. are embedded in the viral capsid.
A. do not enter the cell with the virus.
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Which of the following is involved in the process of photosynthesis?
a. smooth endoplasmic reticulum b. ribosomes c. stroma d. mitochondria
Which of the following represents an early
stage in primary succession?
a. pine trees b. mosses and lichen of bare rock c. weedy annual plants in an open field d. climax species in succession e. fields of food crops
Assuming that the genes are on separate chromosomes, an organism with the genotype AaBb will make gametes in the following proportions: 1/4 AB, 1/4 Ab, 1/4 aB, and 1/4 ab. What process produces such results?
A) independent assortment B) mutation C) random fertilization D) segregation
The human disease xeroderma pigmentosum results from mutations in genes involved with
a. recombination-repair b. photoreactivation c. base excision repair d. mismatch repair e. nucleotide excision repair