Honors Biology Final Review

What is the main purpose of mitosis?

To produce genetically identical cells

Which phase of the cell cycle involves DNA replication?

Interphase

During which phase of mitosis do the chromosomes line up at the middle of the cell?

Metaphase

What is cytokinesis?

Division of the cytoplasm

How many daughter cells are produced at the end of mitosis?

Two

Which of the following is a source of genetic variation?

Meiosis

What is the term for a cell with two sets of chromosomes?

Diploid

Which genotype represents a homozygous dominant individual?

AA

In a Punnet square, what does the genotype Aa represent?

Heterozygous

What is the phenotype of an individual?

The physical appearance

Which of the following is an example of incomplete dominance?

Red flowers crossed with white flowers produce pink flowers

What is Punnnet square used for?

To predict the probability of offspring traits

What is the probability of homozygous recessive offspring from two homozygous dominant parents?

0%

Sex linked traits more often affect

Males

Which of the following is a key component of Darwin's theory of natural selection?

Individuals with favorable traits are more likely to reproduce

What can lead to the formation of a new species over time?

Geographical isolation and genetic divergence

Which type of evidence best supports the theory of common ancestry among species?

Homologous structures in the anatomy of different organisms

Which of the following best describes an ecosystem?

All the living and nonliving things in a particular area

What is the role of producers in an ecosystem?

Convert solar energy into chemical energy through photosynthesis

Which of these is an example of a biotic factor in an ecosystem?

Bacteria

What happens when a top predator is removed from a food web?

Populations of prey species may increase