Chaper 5 Quizes

Question 0

During transcription at the point where the DNA strand being copied has an adenine,—- is added to the mRNA

Answer 0

A uracil

Question 1

What can be concluded about comparing differances in molecular biology between different species

Answer 1

Genetic similarities demonstrate species relatedness

Question 2

The full set of an individual organisms DNA is called its

Answer 2

Genome

Question 3

The central dogma of molecular biology states that

Answer 3

DNA is transcribed into RNA which is translated into protein

Question 4

How are open reading frames identified In a genome

Answer 4

Start and stop codons

Question 5

Eukaryotic cells can divide by

Answer 5

Both mitosis and meiosis

Question 6

During DNA replication each strand serves as a —- for the new —- strands.

Answer 6

Template; complementary

Question 7

If you have an extra copy of this chromosome Down syndrome develops

Answer 7

21st

Question 8

Without his tones eukaryotic DNA most likely would be

Answer 8

Much longer than it is

Question 9

During what stage of the mitotic cell cycle would you see a single file arrangement of chromosomes

Answer 9

Metaphase

Question 10

Transgenic plants have been modified for what

Answer 10

Improved nutritional quality, herbicide resistance, reduced cost of production, insect resistance

Question 11

Transgenic plants have not been modified for

Answer 11

Nitrogen fixation

Question 12

Scientist have inserted a gene from a bacterium into corn plants to

Answer 12

Increase the corns resistance to insects

Question 13

Which of the following types of mutations occurs when one or two nucleotides are either inserted or deleted frond DNA sequence

Answer 13

Frame shift mutation

Question 14

A mutation that involves the addition, subtraction, or substitution of a single base is known as

Answer 14

A point mutation

Question 15

The diagram above shows two DNA basses connected by which of the following

Answer 15

Hydrogen bonds

Question 16

Eukaryotic cells can divide by

Answer 16

Both mitosis and meiosis

Question 17

The phenotype of an organism can best be determined by

Answer 17

Observing the organism

Question 18

Hydrogen bond are 1/30 as strong as what

Answer 18

Covalent or ionic bonds

Question 19

The technique often used in forensics that identifies individuals based on their genetic differences is referred to as

Answer 19

DNA fingerprinting

Question 20

The impact of a single gene on more than one characteristic is called

Answer 20

Pleiotropy

Question 21

Considering the principle of complimentary base pairing you would expect an equal ratio of which two nitrogenous bases in a DNA molecule

Answer 21

Cytosine and guanine