Vascular plants, like fern, show alternation of generations. Which represents a gametophyte in the life cycle of fern?

a. Rhizomes

b. Prothallus

c. Sporangia

How is meiosis related to natural selection

Leslie Waterman, a 57-year-old corrections officer, is being seen at the ophthalmic group where you practice nursing. He's concerned about his vision changes where he sees distance much more clearly than nearby sights.

White eyes in Drosophila melanogaster result from an X-linked recessive mutation. Occasionally, white-eyed mutants give rise to offspring that possess white eyes with small red spots. The number, distribution, and size of the red spots are variable.

If a cell has completed the first meiotic division and is just beginning meiosis ii

What advance has occurred in liquid phase hybridization?

The parents of a client with a mental illness being cared for at home tell the nurse that they have been feeling overwhelmed lately. they say, "we need to get away for a few days to recharge ourselves.

Explain how the conversion of wetlands to farmland has impacted streams and rivers.

What type of bond links monomers together to form polymers? using the analogy of a train, if cars represent amino acids, what does the entire train represent?

Differences among individuals of a species are referred to as

J. What differences can you see when you compare the nucleus of a dividing cell with that of a non-dividing cell?