D3.2 inheritance

Question 1

hermaphroditic.

Answer 1

An organism with both male and female reproductive organs.

Question 2

true breeding

Answer 2

parents that always pass on their phenotypic traits to offspring (homozygous)

Question 3

genotype

Answer 3

allele combos

Question 4

phenotype

Answer 4

physical traits

The outward expression of the combination of the alleles along with the influence of environmental factors

Question 5

phenotypic plasticity

Answer 5

environmental influences
- polyphenism

Question 6

PKU

Answer 6

mutation chromosome 12
- rrecessive disordeer
- PAH enzyme for metabollism
converts amino acid phe to Tyr

urine, fair skin, eczema, seizures, tremors and hyperactivity

Question 7

how to test for PKU

Answer 7

blood to test phe: tyr ratio

Question 8

SNP (single nucleotide polymophism)

Answer 8

genetic variation by single nucleotide changes

Question 9

incomplete dominance

Answer 9

third intermediate phenotype a blend between both parental phenotypes

red + white

Question 10

codominance

Answer 10

type AB blood

Question 11

nondisjunction

Answer 11

failure for sister chromatids to separate

if this happens in the 23rd pair, an incorrect number of sex chromosomes can result

Question 12

Aneuploidy

Answer 12

individual has an extra chromosome(s) or is missing a chromosome.

Klinefelter syndrome is one of the most common example of aneuploidy

Question 13

sex linked genetic disorders

Answer 13

• mutation on x chromosome
• colorblindness and hemophilia