Genetics

Question 1

how many strands is DNA made up?

Answer 1

2 strands of nucleotides

Question 2

The nitrogenous base of a nucleotide is variable

Question 3

The base can be adenine, thymine, guanine, cytosine

Question 4

What are the base pairs?

Answer 4

Adenine with Thymine
Guanine with Cytosine

Question 5

How long is a DNA strand?

Answer 5

5 meters long

Question 6

chromosomes are matched with homologous pairs. one from mom and one from dad.

Question 7

XX=female
XY=male

Question 8

the remaining chromosomes are autosomal

Question 9

one allele is dominant and the other is recessive

Question 10

Bb is

Answer 10

Heterozygous

Question 11

R=red
W=white
RR=red
WW=white
RW=roan

Question 12

Example of sex limited genes

Answer 12

Milk production in bulls. bulls carry the gene for milk production, but they do not produce milk

Question 13

Sex influenced gene

Answer 13

males require one copy of expression
females require two copies of expression

Question 14

Genotype dictates phenotype

Question 15

Genotype+Environment=Phenotype

Question 16

Low heritible

Answer 16

heavily affected by the environment

Question 17

High heritability

Answer 17

influenced by the animals genetics

Question 18

What is EPD?

Answer 18

Comparing