final exam review

Question 1

Identifying marker of medulla

Answer 1

Relative width, continuous/fragmented, opaque/translucent

Question 2

Identifying marker of cuticle

Answer 2

Thickness

Question 3

3 stages of hair growth

Answer 3

1) anagen; hair actively grows. 2) catagen; follicle shrinks. 3) telogen; hair sheds.

Question 4

3 parts of a crime scene sketch

Answer 4

Legend, evidence, and scale

Question 5

Antigen

Answer 5

a substance that causes an immune response

Question 6

Antibody scientific name

Answer 6

Immunoglobulin

Question 7

Antibody

Answer 7

A protein in the blood that binds to pathogens and alien substances

Question 8

Purines

Answer 8

2 rings; adenine and guanine

Question 9

1 ring

Answer 9

Pyrimidines

Question 10

DNA can be extracted from …

Answer 10

Bone (marrow), hair, preserved body parts, clothing/fibers, saliva, and body fluids

Question 11

Hydrogen bonds between adenine & thymine

Answer 11

2

Question 12

Hydrogen bonds between guanine & cytosine

Answer 12

3

Question 13

Order that DNA is analyzed

Answer 13

1) DNA extraction. 2) PCR. 3) Restriction enzyme digest. 4) Gel electrophoresis

Question 14

What kind of bonds are there in the DNA backbone (that are cut using restriction enzymes on a single strand)?

Answer 14

Covalent bonds