Exam

Question 1

Co dominance

Answer 1

Form of inheritance where alleles and gene pair in a heterozygote are fully expressed and equally doninant

Question 2

Incomplete dominance

Answer 2

Neither alleles dominate the other, contribute to phenotype- so new phenotype is made

Question 3

Recessive inheritance

Answer 3

Phenotype is only expressed when two copies are homozygously recessive

Question 4

Crossing over

Answer 4

In metaphase 1 the central chromatids of a homologous pair of chromosomes snap and exchange pieces of DNA, creating 4 new gametes

Question 5

Meiosis

Answer 5

Cell division that produces unique cells with half number of chromosomes

Question 6

Segregation

Answer 6

Metaphase 2, each chromosome lines up in a random order and alleles are mixed into new alleles

Question 7

Independent assortment

Answer 7

During metaphase 1, pair of chromosomes line up at equator- mixes existing parental cells to form new gametes