D3.2 Inheritance

Question 1

Gamete

Answer 1

A haploid reproductive cell that carries one set of chromosomes

Question 2

Zygote

Answer 2

A diploid cell formed when two gametes fuse during fertilization, containing two sets of chromosomes (one from each parent)

Question 3

Diploid

Answer 3

A cell that contains two sets of chromosomes, one from each parent

Question 4

Haploid

Answer 4

A cell that contains one set of chromosomes

Question 5

P (Parental generation)

Answer 5

The original pair of organisms in a genetic cross

Question 6

F1 (First dilial generation)

Answer 6

The offspring of the P generation

Question 7

F2 (Second filial generation)

Answer 7

The offspring resulting from a cross between F1 individuals

Question 8

Gene

Answer 8

A segment of DNA that codes for a specific trait

Question 9

Allele

Answer 9

A variant or form of a gene, which may result in different versions of a trait

Question 10

Phenotypic plasitcity

Answer 10

Ability of an organism to alter its phenotype in response to environmental conditions

Question 11

Gene pool

Answer 11

Refers to the total collection of alleles present in a population of a species

Question 12

Codominance

Answer 12

Both alleles are expressed equally in the phenotype (polkadots)

Question 13

Incomplete dominance

Answer 13

The heterozygous phenotype is a blend of the homozygous phenotypes (red+white=pink flower)

Question 14

Discrete variation

Answer 14

Phenotypes that can be put into distinct qualitative categories with no intermediates between them. (Blood type)

Question 15

Continuous variation

Answer 15

Phenotypes that vary along a quantitative continuum with a range of phenotypes possible. (human height.)