Independent assortment refers to the fact that
A. a cell will divide and produce various offspring regardless of whether any other cell is dividing.
B. mitosis normally produces cells that are like each other and like the parent cell.
C. the daughter cell that receives the maternal #1 chromosome will not necessarily receive the maternal #2.
D. a crossover between two chromosomes will produce offspring unlike either parent.
C. the daughter cell that receives the maternal #1 chromosome will not necessarily receive the maternal #2.
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Which polysaccharide is a chain of glucose units that are modified by having nitrogen-containing groups, is the main
structural fiber in the external skeletons of arthropods, and also a structural material in the cell walls of fungi?
a. chitin b. amylopectin c. cellulose d. glycogen e. amylose
The protein globin is composed of how many polypeptide chains?
a. 1 b. 2 c. 3 d. 4 e. 5
The behavior of parental care exhibited by dinosaurs is thought to be ________ to this behavior in crocodiles and birds because phylogeny shows that these three groups share a common ancestor.
Fill in the blank(s) with the appropriate word(s).
Which statement regarding behavior is true?
A) Innate behaviors are performed the same way in all members of a genus. B) Fixed action patterns are learned behavior sequences. C) A learned behavior triggers a fixed action pattern. D) A fixed action pattern is under strong genetic control.