The sides of the DNA ladder (backbone) are A. alternating carbons and nitrogens. B. the R groups. C. the nitrogenous bases. D. alternating nitrogens and phosphates. E. sugars and phosphates.

In poultry, the sex of offspring is determined by the * a. male b. female c. both the male and the female d. sometimes the male and sometimes the female

The process by which one large nucleus splits into two nuclei

A diploid cell in a plant undergoes chromosome duplication but fails to divide properly, initiating a tetraploid (4n) branch. This branch produces a 4n flower.

2. Mr. Simpson has blood type ABRh + and his wife type ORh+. Mr. Doodle has type ARh - and his wife type ORh+. The Simpsons and Doodles each had a baby girl on the same day.

Describe what happens during the four stages of mitosis

Force which we witnessed after a sock and balloon were rubbed together.

Which fossil occurs on the most landmasses

Which statement is NOT true about subatomic particles? a. Protons are found in the nucleus. b. Neutrons have no electrical charge. c. Electrons contain much less mass than neutrons. d. Electrons are found in orbitals around the nucleus. e.

Witch came first the chicken or the egg

Which of the following genotypes could be described as homozygous dominant