B.A.M.S Biology Cumulative (-Taxonomy)

Why did Gregor Mendel use peas in his experiments? Peas grow very slowly. Pea reproduction cannot be controlled. Peas normally produce very few offspring. Peas have characteristics that have two forms. - Answer- Peas have characteristics that have two forms. Scientists often use fruit flies as a method to test hypotheses about human genes. Why are fruit flies advantageous in the study of human inheritance? They can self-pollinate. They lack nucleic acids. They are very different from humans. They reproduce quickly and take up little space. - Answer- They reproduce quickly and take up little space. A scientist wants to examine a genetic disease in humans. The scientist hypothesizes that the disease can be treated by using gene therapy. Humans take a long time to reproduce and develop, so the scientist will have to give up on testing the hypothesis. test the hypothesis for a very long time. develop new methods to test the hypothesis. find a way to make humans reproduce faster. - Answer- develop new methods to test the hypothesis. What is a gene? a section of a protein that codes for DNA the alternate version of a trait the visible trait in the F1 generation a section of DNA that codes for a specific trait - Answer- a section of DNA that codes for a specific trait Some people have freckles, and some people do not have freckles. If a child has freckles, at least one parent has freckles. However, the child may have a sibling that does not have freckles. Which statement best describes the presence of freckles? Freckles are not determined by DNA. There are two alleles for freckles. There is no dominant allele for freckles. Freckles are determined by two genes instead of by one. - Answer- There are two alleles for freckles. Nucleic acids offer variability because they contain alternate forms of genes called ________ - Answer- alleles