A couple are both heterozygous for the dominant allele for polydactyly. They want to have three
children. What is the probability that all three children will have polydactyly?
a. 3/4
b. 9/64
c. 1/64
d. 27/64
e. 1/2
D
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Which of the following is not information derived from karyotypes?
A. The number of chromosomes in a genome. B. The number and type of sex chromosomes. C. The presence or absence of individual chromosomes. D. Structural abnormalities. E. The pattern of inheritance: recessive, dominant, etc.
Transcription in eukaryotes is generally influenced by enhancers, just as in prokaryotes
Indicate whether the statement is true or false
Which Ecdysozoan phylum includes insects, spiders, crustaceans, millipedes, and centipedes?
a. Onychophora b. Nematoda c. Arthropoda d. Nemertea
From a sociobiological perspective, altruism is a behavior that
A) does not have a genetic basis. B) can potentially enhance the altruist's fitness. C) will always be selected against. D) occurs only in the social insects.