Human Genetics All Answers Correct

HUMAN GENETICS ALL ANSWERS CORRECT gene frequency ️How common the gene is in the population. gene pool ️All of the genes present in a specific population. pedigree ️The ancestral history of an individual; a chart showing the history of a trait in the family. population genetics ️The study of a hereditary trait in a large population. The large number of potential gene __________ make it unlikely that any two people will be identical. ️combinations Why do identical twins have the same set of genes? they are born of the same parents they both have haploid chromosomes one or more gametes underwent nondisjunction they were born of one fertilized ovum ️they were born of one fertilized ovum When using data from population genetics research: the sample must be statistically large the sample must be statistically small the sample must be 100% accurate the sample must have a high probability of representing the population ️the sample must have a high probability of representing the population A family pedigree is a chart of various patterns that shows a general trend. True or False. ️False A pedigree is not helpful to a counselor in predicting the probability of a recessive gene being present and the chances for an offspring to receive the gene and express the trait. True or False ️False A genetic counselor can also use the principles of population genetics in his advising. What is the basis for this type of counseling? ️Answers vary Each member of a class sampled a piece of PTC testing paper. Thirty people sampled the chemical. Twenty persons were tasters. How many had heterozygous genes? 0-20 20 indeterminate 10 ️0-20 Each member of a class sampled a piece of PTC testing paper. Thirty people sampled the chemical. Twenty persons were tasters. How many had homozygous genes? 10-30 10 0-10 10-20 ️10-30 Each member of a class sampled a piece of PTC testing paper. Thirty people sampled the chemical. Twenty persons were tasters. How many had homozygous recessive genes? __ ️10 In a large population, approximately 65 percent are tasters and 35 percen