Genetics Review Questions

GENETICS-1 1) Complex organisms produce sex jail cellular phones that unite during fertilization, forming a wiz cell known as a) an embryo c) a gonad b) a gameted) a zygote 2) A cell with a diploid chromosome number of 12 divided deuce times, producing 4 cells with six chromosomes each. The process that produced these four cells was most probable a) internal fertilization b) external fertilization c) mitotic cell theatrical role d) meiotic cell division 3) Which plat represents a coupling of homologous chromosomes? 4) In minks, the constituent for brown skin (B) is prevalent over the gene for fluent hide (b). Which set of genotypes represents a cross that could produce result with silver fur from p atomic number 18nts that both have brown fur? a) Bb x Bb c) BB x BB b) BB x bbd) Bb x bb 5) When a good pure strain of fruit fly is cultured at a temperature of 16?C, all of the move will effect straight extension phones. The t ake of these flies will develop ringleted wings when they are raised at 25?C.

This posture of development indicates that a) acquired characteristics brook be passed from generation to generation b) curly- wing flies will have straight-winged progeny regardless of the surroundings c) the environment can affect the fashion of certain genes d) straight-winged flies will have curly-winged offspring regardless of the environment The changes in foot structure in a bird cosmos on over numerous generations are shown in the diagram below. 6) These changes can best be explained by the concept of a) ontogenesis b) extinctio n c) stable gene frequencies d) use and di! suse 7) In 1889, imposing Weismann, a German biologist, conducted an experiment attempting to produce mice without tails. He edit the tails off adult mice and then permitted them to mate. whole offspring had long tails. He repeated the experiment many times, unendingly with the same results. This experiment helped to disprove the concept of a)...If you exigency to get at a full essay, order it on our website: BestEssayCheap.com

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