semester 1 exam part 6

Question 1

describes how traits can disappear and reappear in a certain pattern from generation to generation

Answer 1

the law of segregation

Question 2

law of segregation states that

Answer 2

alleles of a gene separate from each other during meiosis

Question 3

the primary function of DNA is to

Answer 3

store and transmit genetic information

Question 4

molecules of DNA are composed of long chains of

Answer 4

nucelotides

Question 5

which of the following is not part of a molecule of DNA

Answer 5

ribose

Question 6

a nucleotide consists of

Answer 6

sugar
phosphate group
nitrogen containing base

Question 7

transcription is the process by which genetic information encoded in DNA is transferred to a

Answer 7

RNA molecule

Question 8

a ribosome has

Answer 8

three binding sites used during translation

Question 9

the attachment of nucelotides to form a complementary strand of DNA

Answer 9

is catalyzed by DNA polymerase

Question 10

enzyme responsible for adding nucleotides to the exposed DNA template bases are

Answer 10

DNA polymerase

Question 11

the function of rRNA is to

Answer 11

form ribosomes

Question 12

RNA that carries instructions for making proteins

Answer 12

mRNA

Question 13

piece of DNA closely associated with a gene

Answer 13

genetic marker

Question 14

determined by crossing over data

Answer 14

chromosome map

Question 15

autosomal dominant gene

Answer 15

Huntington’s disease

Question 16

genes found on the same chromosome

Answer 16

linked genes

Question 17

presence of a gene on a sex chromosome

Answer 17

sex linkage

Question 18

substitution, deletion, or addition of a single nucleotide

Answer 18

point mutation

Question 19

failure of homologous chromosomes to separate during meiosis

Answer 19

nondisjunction

Question 20

controlled by multiple alleles

Answer 20

ABO blood group

Question 21

if two genes are closely arranged on a chromosome then they will

Answer 21

be inherited together

Question 22

mutation that does not affect an organism but can be passed on to offspring

Answer 22

germ cell mutation

Question 23

point mutation that does not result in a frame shift

Answer 23

substitution

Question 24

genetic disorders in human chromosomes can be determined by removing a small piece of tissue from a structure that lies between the uterus and the placenta. this procedure is called

Answer 24

chorionic villi sampling