Explain what is meant by species richness

DNA replication in human cells occurs at a rate of about 50 base pairs per second, and the length of the longest human chromosome (chromosome 1) is 249 Mb (1Mb = 1x10^6 bp).

A color blind man without hemophilia (both X-linked traits) marries a woman who is a carrier for both traits. What is the probability they will have a son with both color blindness and hemophilia? Hemophilia and color blindness are unlinked genes. a.

36. What is adaptation?

Give three examples of reproductive barriers AND Explain how these barriers could lead to speciation over a long period of time.

What does random means

What makes some genes responsible for an increased risk of certain cancers?

Why does the translation of a protein destined for the lumen of the er slow or cease in the cytoplasm?

What organelle carries out photosynthesis

Which of the following elements can be found in all lipids? A) Oxygen B) Sulfur C) carbon D) Hydrogen E) Nitrogen

When a bird eats a small insect it can be considered a secondary consumer but what is the bird considered as when it eats seeds?