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Phenotype for eye colour is determined by a certain locus.E indicates the dominant allele ande indicates the recessive allele. Thecross between a MALE normal fruit fly and a FEMALE white-eyed fruitfly produced this set of offspring:F1Normal Male: 0Normal Female: 45White Eyed Male: 55White Eyed Female: 0Brown eyed Female: 1The normal […]

Sudden addition of oxygen (O2) to a previously anaerobic culture of yeast fermenting grape juice results in a dramatic decrease in the rate of glucose consumption. This is known as “Pasteur effect”. a) Why would the yeast cells consume less glucose in the presence of oxygen? Can you estimate how […]

1) While discussing their findings, authors have ignored a main threat to the validity of their estimates of the exposure. Explain and discuss this error. State the alternative study design must overcome this problem and also explain why? Rate the study’s internal validity; low, medium or high. Explain this systematically […]

Q. In humans, oogenesis in comparison to spermatogenesis is different in that? A) cytokinesis is unequal during the meiotic divisions B) mature ovum has not yet completed its second meiotic division C) first meiotic division is not completed unless the egg is reactivated by a hormone. D) Sequence from primary […]