1-15 multiple choice

Question 1

What is the basic unit of heredity?

Answer 1

Gene

Question 2

Which scientist(s) is/are credited with the discovery of the structure of DNA?

Answer 2

Watson and Crick

Question 3

What is the term for a variant form of a gene?

Answer 3

Allele

Question 4

Which process describes the creation of mRNA from a DNA template?

Answer 4

Transcription

Question 5

What is the term for an organism’s observable characteristics?

Answer 5

Phenotype

Question 6

In genetics, what is a genome?

Answer 6

All of the DNA in a cell

Question 7

What term describes the crossing over of chromosomes during meiosis?

Answer 7

Recombination

Question 8

What is the principle of independent assortment?

Answer 8

Genes for different traits can segregate independently during the formation of gametes

Question 9

What are the four nitrogenous bases in DNA?

Answer 9

Adenine, Guanine, Cytosine, Thymine

Question 10

Which genetic principle states that allele pairs separate independently during the formation of gametes?

Answer 10

Law of Independent Assortment

Question 11

In genetics, what does homozygous mean?

Answer 11

Having two identical alleles for a gene

Question 12

What is the function of tRNA in protein synthesis?

Answer 12

Carrying amino acids to the ribosome

Question 13

Which process describes the copying of DNA to DNA?

Answer 13

Replication

Question 14

In a diploid organism, a dominant allele will express itself if it is present:

Answer 14

In single quantity

Question 15

Which genetic disorder is caused by a defect in the hemoglobin gene leading to abnormal red blood cell shape?

Answer 15

Sickle Cell Anemia