If a population has three, color alleles and one is dominant over the other two, how many phenotypes are possible?
What will be an ideal response?
Four.
(a) Homozygotes with two dominant alleles and the heterozygotes with the dominant allele, regardless of the other allele, will be the dominant color;
(b) Homozygotes with the two non-dominant alleles will be a second color;
(c) Homozygotes with the other two non-dominant alleles will be a third color;
(d) Heterozygotes with one each of the non-dominant alleles will be a fourth color.
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A fruit is a mature:
A. ovary. B. ovule. C. stigma. D. stem. E. pollen grain.
Phenotypic characteristics that have a continuous distribution are considered to be ________ traits
Fill in the blank(s) with correct word
If the antenna complex did not exist in a particular plant mesophyll cell, what effect would that have on photosynthesis?
A. These cells would be unable to absorb any light energy. B. These cells would have a reduced capacity to generate glucose. C. There would be no expected effect on photosynthesis. D. These cells would be able to fix more carbon dioxide.
The movement of substances from lower to higher concentration across a semipermeable membrane that must have a specific protein carrier and cell expenditure of energy is called
A. endocytosis. B. diffusion. C. osmosis. D. active transport. E. facilitated diffusion.