What enzyme works to add DNA to ends of chromosomes in rapidly dividing cells such as those found in an embryo, to prevent genes from being lost during replication?

a. DNA polymerase

b. histones

c. telomerase

d. chromatin

What muscle covers the ventral, pectoral region? For rats

Which nutrient will be deficient in the body because of a lack of exposure to sunlight? A.) vitamin B12 B.) vitamin D C.) iron D.) calcium

Which statement is true about the cells in multicell organisms? a) They can all turn into the same kind of cell needed b) They are all identical c) they are prokaryotic cells d) They usually have certain special functions

The spoon a conductor or insulator

What is the definition of solar irradiance?

Which is an abiotic factor of the boomslang's environment? A. the sun B. the tree C. the grass D. the people

A double-stranded molecule of DNA has 80 T nucleotides and 110 G nucleotides. What is the TOTAL number of nucleotides in this molecule of DNA?

Why is an angioplasty an incorrect treatment for an aneurysm? A) Aneurysms cannot be treated. B) An angioplasty may rupture the blood vessel wall. C) An angioplasty can have dangerous drug reactions. D) Aneurysms are treated only with pacemakers.

Why was nucleic acid disregarded for so long as the molecule responsible for the transmission of hereditary information?

Sally's estimated energy requirement, based upon her age, height, and weight, is approximately 2000 kcalories per day. What is the maximum number of kcalories per day that she can consume to lose 3 pounds per month. Assume 1 month is 30 days. a.