How does crossing over increase genetic variation in organisms

Both plant and animal cells contain- a. a cell membrane, cell wall, and a nucleus. b. a cell membrane, cytoplasm, and a nucleus. c. mitochondria, a cell membrane, and chloroplasts. d. mitochondria, a cell wall, and chloroplasts.

Homologous recombination is a unique feature of meiosis whose purpose is to increase genetic diversity during reproduction.

Which process produces a great number of offspring? a. chromosome duplication b. asexual reproduction c. gamete formation d. sexual reproduction

Predict the pea shape of the offspring of one heterozygous round pea plant and one homozygous wrinkled pea plant. Round is dominant over wrinkled. Use R for dominant and r for recessive.

The results of gel electrophoresis are shown below. what can you determine about the dna from looking at the results of this test?

Which describes water cycling through living things? A. Water flows along the ground into an ocean B. Water condensed to form a cloud in the sky C. Water percolates through the soil D. Water evaporates from the skin of a horse

Which of the following is not one of the statements of the Cell Theory? A. All living things are made up of one or more cells. B. Cells perform basic life functions. C. Cells come from other living cells. D. All cells are capable of making glucose.

At 9:00 there are exactly 10 bacteria in a dish and the population doubles every 15 minutes

What is a cell containing two complete sets of chromosomes one from each parent

What do scientists think the main cause for global warming is?