Which processes can be carried out by consumers?
A. Only cellular respiration
B. Only photosynthesis
C. Both photosynthesis and cellular respiration
D. Neither photosynthesis nor cellular respiration
Answer: A
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The simplest type of variation in a genome sequence is a single nucleotide change called a(n)
What will be an ideal response?
Imagine in lemmings, that gray fur color (G) is dominant over white (g). There is another gene, called color, and individuals must have at least one color (C) allele for gray color to be expressed. A lemming that is heterozygous at both loci is crossed with a white lemming that is heterozygous for gray fur color. Which of the following is correct regarding their offspring?
A. All will be gray B. All will be white C. 3/8 will be gray, 5/8 will be white D. 1/4 will be gray, 3/4 will be white E. They will have a ratio of 9 gray:7 white
Answer the question using the accompanying figure. Of the fragments labeled A-D, which is closest to the positive
electrode?
a. A b. B c. C d. D e. it is impossible to tell
Maternal effect mutations can be identified when
A) homozygous mutant females exhibit an abnormal phenotype, whereas mutant males appear wild-type. B) homozygous mutant females can develop normally, but their offspring exhibit a mutant phenotype. C) heterozygous mutant females can develop normally, but their offspring exhibit a mutant phenotype. D) any aspect of embryonic development is abnormal.