Duplicate of Biology Keystone - Module B

Fertilization of an egg leads to a diploid genome. Which is true of a diploid cell?

Which of the following is an example of an observation?

When does crossing over occur?

Changing a single base causes an error that affects the next 500 amino acids in a protein.

Which events occurs during the interphase stage of the cell cycle?

A human is composed of trillions of cells. Which process directly causes this large number?

Which of the following is theoriginal source of energy in any ecosystem?

What is the correct order of the cell cycle?

What happens to the unused organic matter at each trophic level within an energy pyramid?

How is meiosis I different from meiosis II?

Which term best describes the basic unit of inheritance passed from a parent to offspring?

Genetic engineers designed corn with antifungal properties. How does this benefit farmers?

How can translocation affect chromosomes?

What are the phases of mitosis in order?

The graph represents changes to a trait. What most likely occurred at time 1?

Which mutation is the most likely to result in no effect to the phenotype of a cell?

Owl’s disk-shaped face helps direct sound waves into the owl’s ears, similar to a human ear

Various bacteria, fungi, vertebrates, and invertebrates all live in one common area.

How is mitosis different from meiosis?

This location would most likely have an aye-aye population with the greatest genetic variation.

Which scenario would lead to the most rapid evolution of a new species of beetle?

What must be transmitted to new DNA strands during replication to maintain genetic information?

The amount of rainfall, intensity of UV radiation, and local climate are all examples of 

A species of flower has 5 petals. One individual has 3 petals. What most likely caused it?

Squirrels, separated by the Colorado River, became unique species. Which mechanism caused this?

Which phase of mitosis do the chromosomes line up at the center?

Very few plants grow at the bottom of oceans. Which scenario best explains this observation?

Which statement best describes how invasive plants can negatively affect native herbivores?

Leopards live and hunt alone. What is most likely the primary value of living alone?

Which outcome is mostlikely a result of selective breeding?

What type of evidence does the presence of homologous structures in plants provide?

Which effect is most likely caused by nondisjunction during meiosis?

What are homologous structures?

How is mitosis different from meiosis?

Which description is the best example of a population?

Which answer correctly distinguishes between the following statements?

The DNA of two brown eyed and blue eyed people is analyzed. What would they have in common?

Whichof the following best describes an acquired trait of a cat?

Which energy transfer most likely occurs between organisms in the food web?

Two species of frog live in the same area. Which is the best evidence for a common ancestor?

A cell goes through Meiosis. How are the daughter cells different than the parent cell?

What phase of mitosis does the nuclear envelope reappear?