Which of the following statements about kinetochores is true?
(a) Kinetochores assemble onto chromosomes during late prophase.
(b) Kinetochores contain DNA-binding proteins that recognize sequences at the telomere of the chromosome.
(c) Kinetochore proteins bind to the tubulin molecules at the minus end of microtubules.
(d) Kinetochores assemble on chromosomes that lack centromeres.
(a)
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What will be an ideal response?
Microbial proteases are used
A) in the production of linen. B) as preservatives. C) in spot removers. D) as a component of fabric dyes. E) to biodegrade plastics.
Which of the following is NOT a goal of recombinant DNA technology?
A) combining genetic material from more than one organism to produce new useful organisms B) making it possible to clone humans C) eliminating undesirable traits from livestock or crops D) being able to remove or correct damaging traits in humans E) creating organisms capable of producing useful products
A mutation arises in an individual that decreases its fitness. This means that this individual's
A. ability to migrate long distances will decrease. B. probability of survival will decrease. C. contribution to the gene pool of the next generation will decrease. D. ability to find food will decrease. E. likelihood of having healthy offspring will increase.