SPR18-2018 Spring Term (1) Human QUESTION 29 Genetio drift acts to variation wit

Question

SPR18-2018 Spring Term (1) Human QUESTION 29 Genetio drift acts to variation within populstions and variation between populations decrease, decrease increase, incrrase decrease, increase nerease, decrease QUESTION 30 By itself, inbreeding caases a change in allele frequencies, but not genotype frequencies causes a change in genotype frequencies, but not allele frequencies causes changes in both genotype and allele frequencies does not change cither allele trequencies or gonotype frequencies QUESTION 31 Accoeding to the biological species conceps, horses and donkeys are nor considered in the same species because they mever mate they do not produce fertile offipring (mosthy) ey look different they do not share a relatively recent common ancestor

Explanation / Answer

29- Genetic drift means the change in the genotype of a small population in a small area. This causes variation within the species and also within different populations as this species interact with other population also and show its impact on other population.

30- it can cause change in allele frequencies because of crossing over but not in genotype as the same genotype replicate and transfer to next generation.

31- The same species must be reproduced and produce fertile offspring so the generation continue. In this case the offspring is sterile know as mule so these consider as different species.

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