Cumulative Exam — Cumulative exam Answers

A student argues that two species of birds are the same species because they have similar body structures, similar DNA, and similar beaks. Another student argues that the birds are different species because they have different color patterns and have a different mating season. Which piece of evidence supports the second student's argument?

Which of these are most likely homologous structures? bat wing dragonfly wing Tyrannosaurus arm

What will happen to the frequency of the recessive allele for the HbS gene when there is an outbreak of malaria?

DNA replication occurs during which phase of the eukaryotic cell cycle?

These notes were taken during a class about biological evolution, but the subject title is missing. -results from immigration -new genes brought into a population -variation in a population increasesWhat do the notes describe?

Which function of the cell cycle is especially important to burn victims?

Parents with the genotypes AO and AB have a child. What are all the possible blood types of the child?

In roses, red flowers and long stems are dominant traits. A rose plant that is homozygous for both red flowers and long stems is crossed with a rose plant that is heterozygous for red flowers and homozygous for short stems. What percentage of the offspring will exhibit red, long-stemmed flowers?

A species of mud snail was studied for five years. During this time, scientists observed the season in which they mated, the number of offspring they produced, and the results of such stressors as drought, famine, and lack of mates. Which question were the scientists most likely studying?

What does DNA provide the code for?

Which is an agent that causes a mutation in DNA or chromosomes?

Populations of organisms that exhibit a high degree of variation have a greater chance for survival than populations of organisms that show little variation. This statement is

Changes in the gene pool can occur due to various mechanisms. In 1989, a large oil spill occurred in Prince William Sound, Alaska, when the Exxon Valdez oil tanker ran aground. Approximately 11 million gallons of oil were spilled and spread 1,300 miles along the Alaskan coastline. The damage from the oil spill affected thousands of animals in the area, including killer whales, harbor seals, sea otters, fish, and sea birds. Which mechanism most likely affected the gene pools of the organism populations in the areas around the oil spill?

Which are different forms of the same gene?

Carlos is collecting data about the length of earthworms in his backyard. The shortest worm he found is 4 inches long; the longest worm is 8 inches long. If most of the worms are either short or long, which type of distribution is displayed in the population?

Hemophilia is an X-linked recessive disorder that is passed through generations and can be traced by using a pedigree. Who has hemophilia in the pedigree that is shown?

Consider the cladogram.Which is the best description of the two organisms highlighted in orange?

Which of the following difference between DNA and RNA allows them to perform their unique functions?

Which statement best describes the overall change that occurs as a result of mitosis?

Which is not something that occurs in translation?