Weekly Review Question s: Week 14 (Worksheet 12) In a certain population, the al

Question

Weekly Review Question s: Week 14 (Worksheet 12) In a certain population, the allele frequencies of the M and N blood group alleles are 0.6 and 0.4, respectively. How many of a population of 500 would be expected to have MN blood type if the population is in genetic equilibrium for the MN locus? 1. 20 100 15 -30 10F 10 2 9 11 Body weight in pounds 2. Based on the data in the accompanying figure, a. The infant with the highest probability of survival would weigh: b. An infant with 90% survival (or 10% death) would weigh:

Explanation / Answer

1. Frequency of MN blood group= frequency of M × Freqof N blood group

MN= 0.6×0.4=0.24

Total number of individuals with MN blood group = 0.24×500= 120

Since , chegg allows to answer any 3 of the 5 questions, I would like to answer 1,4 and 5

4. Pangea formed Laurasia and gondwana. Gondwanaland further splitted into Australia. Fossils of tree fern has been found in South America as well S Australia. With the arrival of water and sufficient plants reptiles also evolved and slowly marsupials came into existence in Australia. Thus , biological species evolved in a continent called Australia.

5. Allopolyploids are polyploid with more than 2 sets of chromosome . The additional set of chromosome comes from other species . Some may turn infertile and incapable to produce their offsprings .But again it covers essential features of both species in its genome. It induces rapid genome adjustment that leads to evolution and sequence elimination to produce new set of variant offsprings.

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