Variation And Genetics Set 2

Results

#1. Which of the following proved conclusively that DNA is the genetic material?

Waston and Crick

Griffith

Hershey and Chase

Laderburg and Tatum

#2. The 5-Carbon sugar in RNA molecule is:

Deoxyribose

Ribose

Glucose

Fructose

#3. In the RNA molecule nitrogenous base Uracil is substituted for:

cytosine

adenine

guanine

thymine

#4. Genetic information in a DNA molecule is coded in:

sequence of nucleotides

base pairings

proportion of each base present d. t

the turning pattern of the helix

#5. The two strands of double helix model of DNA are held together by hydrogen bonds between.

Sugar and phosphate groups

Sugar and nitrogenous bases

Phosphate groups and nitrogenous bases

Nitrogenous bases

#6. The number of cytosine bases in a DNA molecule.

is equal to the number of uracil bases

is equal to the number of guanine bases

is equal to the number of adenine bases

cannot be predicted

#7. In a double helix-model of DNA, the distance between two base pairs is:

0.034 nm

0.34 nm

3.4 nm

34 nm

#8. Which of the following bring a particular amino acid to a particular specified place?

tRNA

mRNA

rRNA

DNA

#9. The code for specifying amino acid consists of

one base

two base

three bases

four bases

#10. Which of the following is genetic code for methionine?

UGG

UCG

GUA

AUG

Finish