An organism has 12 chromosomes in its sex cells. It undergoes a process producing four daughter cells, each with 6 chromosomes. What is this process?

A woman who is colorblind (XcXc) can expect - Select one: a. 100% of her female offspring to be colorblind b. 100% of her male offspring to be colorblind c. 50% of her female offspring to be colorblind d. 50% of her male offspring to be colorblind

This organelle is a selectively permeably barrier that controls what goes in and out of the cell.

Which one of the following is a combustion reaction? A. CH4 + 2O2 → CO2 + 2H2O B. Ba (OH) 2 + 2HClO4 → Ba (ClO4) 2 + 2H2O C. 4Fe + 4O2 → 2Fe2O3 D. Zn + HCl → ZnCl2 + H2

For plants and other organisms to develop differences among their respective species the alleles of their genes must contain variations. What is the original source of these variations?

True or false spiders are like animals A:True B:False Which One is Right?

Which of the following statements is false regarding root hairs? a. they are outgrowths of endodermal cells c. they increase the surface area of the root b. they are outgrowths of epidermal cells d. they absorb water and nutrients

Why is it critical to divide the chromosome number in half?

The amino acid proline is one of the three amino acids that watson describes as having "special properties". what is special about proline?

Which nursing action is accurate when administering an im injection using the z track method?

Which of the following is not a symptom of influenza? a. headache b. muscular aches c. dry cough d. diarrhea