3. Which of the following researchers used radioac-

tive markers in experiments to show that DNA was

the genetic material in cells?

a. Frederick Griffith

b. Oswald Avery

C. Alfred Hershey and Martha Chase

d. James Watson and Francis Crick

What are different types of nuclei

Lynette has begun feeling feverish and has a sore throat. Which phase of the immune response is she experiencing?

5. How are the empirical and molecular formulas for a compound related? A An empirical formula is sometimes a multiple of the molecular formula. OB A molecular formula is always the same as an empirical formula.

For human blood type, the a and b alleles are codominant, while the o allele is recessive. if an ab mother had children with a b blood type father (genotype bo), what proportion of the children would express the b protein alone? a. 3/4 b. 1/2 c.

A molecule is: A. a mixture of various components that can vary B. a combination of many atoms that will have different ratios C. a combination of one or more atoms that will have a fixed ratio of its components

Blood type is a type of gene where both alleles can be expressed. Which statement best explains a person with AB blood type.? A) There is a dominant relationship between alleles. B) There is a codominant relationship between alleles.

Should women who are not pregnant and men be concerned about Zika infection? Explain your response.

What are some of the difficulties with measuring the volume of a gas? Select all that apply. A. it could be soluble in liquid B. it can be difficult to contain. C. it varies depending on the container it is in D. it varies based on its mass

3. Which process makes sexual reproduction possible and also increases the variation of inherited traits? a. The wrapping of DNA around histones b. Meiosis c. Gene expression d. Mitosis

Earth's physical layers correspond to Earth's compositional layers. Which part of the mantle is also part of the lithosphere? the fluid, hot part the rigid upper part the lower stationary part the soft-moving part