In your Drosophila laboratory, you find a larva that is missing segments Lb, T1, T2, and T3. This larva probably has a mutation in a ___________ gene.
A. pair-rule
B. gap
C. maternal effect
D. segment-polarity
E. gap or segment-polarity
B. gap
Biology & Microbiology
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Pairs of chromosomes that are similar in size and genetic composition are
a. chromatids. b. diploid. c. haploid. d. chromatin. e. homologous chromosomes.
Biology & Microbiology
The pores through which leaves exchange atmospheric gases with leaf cells during photosynthesis are the
A. sieve tube elements. B. guard cells. C. stomata. D. epidermal cells. E. petioles.
Biology & Microbiology
Vitamin D deficiency in children causes
a. acromegaly
b. rickets c. elevated blood calcium d. kidney stones e. dwarfism
Biology & Microbiology
One function of peroxisomes involves the process of:
a. cell death. b. water storage. c. protein synthesis. d. DNA replication. e. detoxification
Biology & Microbiology