Genetics And Evolution

Question 1

DNA vs RNA:
Purine bases (Larger; 2 rings)

Answer 1

DNA: A and G
RNA: A and G

Question 2

DNA vs RNA:
Pyrimidine Bases (Smaller, 1 ring)

Answer 2

DNA: T and C
RNA: U and C

Question 3

DNA vs RNA:

Base Pairing

Answer 3

DNA: A-T, G-C
RNA: A-U, G-C

Question 4

3 types of RNA

Answer 4

mRNA
tRNA
rRNA

Question 5

Meiosis creates what type of cells

Answer 5

Sex

Question 6

If the original cell has 46 chromosomes, then the cells created by meiosis will have how many chromosomes?

Answer 6

23

Question 7

DNA vs RNA:

Number of strands

Answer 7

DNA: 2
RNA: 1

Question 8

mRNA is what

Answer 8

Messenger

Question 9

tRNA is what

Answer 9

Transfer

Question 10

rRNA is what

Answer 10

Ribosome

Question 11

What process uses the terms homologous chromosomes?

Answer 11

Meiosis 1

Question 12

What process uses the terms sister chromatids?

Answer 12

Meiosis 2

Question 13

In order to be a species, organisms must be able to produce what type of offspring?

Answer 13

Fertile

Question 14

What prevents some regions of DNA from working?

Answer 14

Methylation

Question 15

Which one of Mendels laws states that dominant allele will prevent the recessive allele from being expressed?

Answer 15

Law of Dominance

Question 16

What law states that each gamete has one allele of each gene?

Answer 16

Law of Segregation

Question 17

What law states that different pairs of genes separate independently of each other?

Answer 17

Law of Independent Assortment

Question 18

What is the advantage of autotrophs?

Answer 18

They can make their own food

Question 19

What is natural selection?

Answer 19

Certain traits have disadvantages, while others have advantages