Human Impact on the Environment — Cumulative exam Answers

The first step in selective breeding is to

Which of the following is an example of adaptive radiation?

Which statement best describes how Watson and Crick's model used other scientists' work to create a model of DNA?

Which is the most efficient way to avoid DNA mutations from UV radiation?

Karyotypes can be studied to determine an organism’s chromosomal makeup and to detect genetic defects. Patau syndrome occurs when an individual has an extra copy of chromosome 13, giving them three copies. Symptoms of Patau syndrome include extra digits, seizures, and cleft palate. Which word would geneticists use to describe the cause of Patau syndrome?

Drosophila eye color is an X-linked trait. Red eye color is dominant, and white eye color is recessive. Which Punnett square shows a cross in which the probability that offspring will be red-eyed males is 25 percent?

Pea plants can have yellow seeds or green seeds. Which conclusion about the meaning of Y is correct if the allele combination Yy is for yellow seeds?

Unattached earlobes is a dominant trait, E. A parent who is homozygous for unattached earlobes is crossed with a parent who is homozygous for attached earlobes. Which describes the genotypes of their offspring?

A student described his new pet dog to his friends. Which part of his description identifies an acquired trait of his new dog?

Suzanne has type A– blood. Which blood type could she receive in a blood transfusion?

Which is the correct order of processes that occur as water moves from a lake to a cloud and then back to Earth's surface?

The figures below refer to a herd of water buffalo.Birth rate = 35 Death rate = 7Immigration = 4 Emigration = 17What is this population growth?

Which is most likely a source of air pollution?

Which type of process occurred in the ecosystem that was affected by the 1988 fires in Yellowstone Park, which destroyed most of the vegetation but left the soil intact?

A scientist measured an increase in nitrous oxide in the atmosphere. This increase would result in

When comparing dogs to wolves, scientists found evidence that supports the idea they come from a common ancestor. Which combination of evidence would most strongly support this idea?

A forest fire destroys an area. A small population of trees and a large population of birds are both affected. Which type of limiting factor causes this?

Which of the following is a method that geneticists use to determine if an individual has chromosome abnormalities?

Which of the following lists the levels of organizational hierarchy from most complex to least complex?

Mutations within an organism can occur in body cells or reproductive cells. Which type of mutation is seen in a sperm cell but not in a skin cell?