A leaf preserved in hard transparent material is found in:

O a mold

O a trace fossil

fossilized amber

O a cast

You are considering having a child and interested in a certain trait being passed down. A geneticist collects as much information as possible about your family's history for that trait. The geneticist is most likely making a ___.

which type of cell division (mitosis v meiosis) increases the likelihood of variation with a species? explain how it happens?

What happens to a cell during the process of differentiation?

For both questions, assume that the four types of nucleotides are equally likely to be found in DNA. Calculate how often, on average, a type II restriction endonuclease is expected to cut a DNA molecule if the recognition sequence for the enzyme has

Why do ferns have to live near water? How are ferns are adapted to live on land? Why are ferns able to grow larger than mosses?

For a constant voltage increasing the temperature will

Many years ago, a scientist grew pea plants that produced wrinkled peas. The peas from these plants produced new plants that also produced wrinkled peas.

How do specialized cells differ from each other?

Explain: In dominant/recessive inheritance patterns, the dominant allele is always expressed when present. The recessive allele is only expressed when the dominant allele is not present.

Chemicals that kill bacteria or slow their growth are called