After fertilization an enbryc develop into a zygote through many cell divisions. if the sperm and egg each contain & chromosomes how many chromosomes are contamed within the zygote

There are a variety of fairly common human genetic diseases in which enzymes required for the breakdown of fructose, lactose, or sucrose are defective.

Cyanobacteria are important to the evolution and advancements of other life on Earth because they A) were the first life form on earth. B) produced oxygen from photosynthesis. C) were the first group of organisms to leave a fossil record.

What part of the hair extends from the papilla to the body surface

An outer membrane is seen in: all bacteria but not archaea all archaea but not bacteria all gram - A. bacteria all gram B. bacteria C. all prokaryotes but no eukaryotes

Around a pond, there is a small population of turtles. Some of them have solid dark brown shells and some of them have yellow and brown shells with yellow spots. Spotted shells are dominant over solid shells.

Is rate of respiration in a big animal same as small animal?

The Calvin Cycle occurs ... A) in the granum of the thylakoid membranes of the chloroplast. B) in the stroma surrounding the inner membrane of the chloroplast C) in the stroma surrounding the thylakoid membranes of the chloroplast D) in the granum

In eukaryotes, the process of cell division is called

Excluding skin cancer, the most common cancer in american males today is

Describe the usefulness of the hardy-weinberg model to population geneticists