A mutation in a Hox gene typically results in
A. development of normal body parts in abnormal places.
B. faulty development of the cellular blastoderm.
C. cleavage disruption.
D. legs growing out of the head of a fly.
A. development of normal body parts in abnormal places.
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Repressors
A. are involved in negative control. B. are involved in positive control. C. always bind to the promoter. D. bind or do not bind to the operator depending on their shape (conformation). E. are involved in negative control AND bind or do not bind to the operator depending on their shape (conformation).
Multicellular fungi grow as branching filaments called ____
a. mycorrhizae b. conidia c. asci d. hyphae e. basidia
The total collection of alleles in a population at any one time makes up that population's ________.
A. heterozygote frequency B. gene pool C. allele frequency D. genotype
The function of upstream promoter elements in eukaryotes, such as enhancers and silencers, is to:
a. serve as binding sites for RNA polymerase. b. regulate the efficiency of transcription initiation. c. regulate RNA polymerase binding to the TATA box. d. encode enhancer and silencer proteins. e. add methyl groups to genes.