Quantitative Genes

Question 1

Both _______________ & ________________ may contribute to phenotype variance

Answer 1

Genetic Variance & Environmental Variance

Question 2

Quantitative traits

Answer 2

Numerical values & complex traits that have more than 1 gene

Question 3

_____________ traits are important for breeding (plants & animals) adaption

Answer 3

Quantitative

Question 4

Continuum

Answer 4

Range of variation (No discrete categories)

Question 5

Traits are influenced by both _____________ & ____________

Answer 5

Genetics & Environment

Question 6

If all variation are due to genetics then heritability is _______

Answer 6

1 (100%)

Question 7

If all variation from environment then heritability is _______

Answer 7

Zero

Question 8

Variance

Answer 8

Variation in phenotype

Question 9

Genetic Variance ______ & Environmental variance _______

Answer 9

(V_G) & (V_E)

Question 10

V_total = ?

Answer 10

V_total = V_G + V_E

Question 11

When V_G increase then V_E ___________

Answer 11

Decreases (Inversely proportional)(Genetics will be the main cause of variation)

Question 12

When V_G decrease then V_E ____________

Answer 12

Increases & environment will be the main cause of variation

Question 13

To determine V_G + V_E compare _______________ & _______________ groups

Answer 13

Genetically identical (Inbred) & Genetical different (Homozygous)

Question 14

Heritability

Answer 14

Is the relative amount of phenotype variation that is due to genetic variation