In humans, patterns of inheritance are often studied using which of the following?

A. Dihybrid testcrosses
B. Production of true-breeding lines
C. Pedigree analysis
D. Self-fertilization
E. None of the answers are correct


C

Biology & Microbiology

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Although all of the cells in your body contain a complete set of DNA, different types of cells arise because__________.

a) different genes are switched on and off in each type of cell b) the contain different chromosomes c) they contain different genes d) none of the above

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________ is (are) associated with 85% of the cases of threatened and endangered species.

A. Exotic species B. Pollution C. Habitat loss D. Overexploitation E. Disease

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If short hair (L) is dominant to long hair (l), animals

LL and Ll have the same a. parents. b. genotypes. c. phenotypes. d. alleles. e. genes.

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If a scientist is conducting a study of how an animal's senses provide a physiological basis for a particular behavior, what type of causation is she exploring?

A. ultimate causation B. stereotyped causation C. ethnological causation D. proximate causation E. fixed action pattern causation

Biology & Microbiology