monohybrid inheritance

Question 1

define monohybrid inheritance

Answer 1

the inheritance of a single gene

Question 2

define diploid organism

Answer 2

all cells carry 2 copies of each homologous chromosome (one from each parent)

Question 3

state the law of segregation

Answer 3

genes exist in more than one form of allele

one allele per gamete (meiosis)

alleles occur in pairs (after fertilisation)

Question 4

define pure breeding

Answer 4

2 individuals are repeatedly bred together and produce the same characteristic in offspring every time

Question 5

write a step by step guide explaining how to construct a genetic diagram to represent a monohybrid cross

Answer 5

1. identity alleles + code
2. parent phenotype + genotype
   (CARRIERS?)
3. alleles present in gametes
4. punnet square
5. match allele combinations
6. offspring - identify genotype and phenotype
7. ratio for phenotype