If two genes are on the same chromosomes and we look at a dihybrid cross between two heterozygous parents, will we see a pattern of 9:3:3:1? Why or why not?
What will be an ideal response?
No. Because the genes are linked, there will not be independent assortment.
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Type IV hypersensitivity reactions typically peak within
A. minutes. B. hours. C. 12 hours. D. 2-3 days.
Geneticists designate heritability as "narrow" or "broad" to account for the fact that
A) genes contribute to different degrees. Typically, recessive alleles are rare and can have a large impact and dominant alleles tend to be common with minor but additive effects. B) genes contribute to different degrees. Typically, dominant alleles are rare and have a small impact and recessive alleles tend to be common, each with major effects. C) genes contribute to different degrees. Typically, dominant alleles are rare and can have a large impact and recessive alleles tend to be common with minor but additive effects. D) dominant and recessive alleles have equal impact, but dominant alleles are more common than recessive alleles.
Which of the following plant groups contains the gene LFY?
a. Only mosses, which arose 400 million years ago. d. Only plants with flowers because expression of the gene gives rise to flowers. b. Only plants with leaves because expression of the gene gives rise to leaves. e. All land plants. c. Only plants with apical meristems because expression of the gene regulates meristematic tissue.
The protein pump that lowers the PH to 2 in the primary lysosome starts working in:
a. Medial face of the Golgi b. Trans face of the Golgi c. Before clathrin recycles d. After clathrin has been recycled e. None of the above