Genetic information 8.1

Question 1

What is the genotype?

Answer 1

The genetic makeup of an organism

Question 2

What is the phenotype?

Answer 2

The expression of genes and its interaction with the environment

Question 3

What is a homozygote?

Answer 3

An individual where both of the alleles coding for a particular characteristic are identical

Question 4

What is a heterozygote?

Answer 4

An individual where the two alleles coding for a particular characteristic are different

Question 5

What does it mean when a phenotype shows dominance?

Answer 5

The phenotype is expressed whether the individual is homozygous for the characteristic or not

Question 6

What does it mean when a phenotype is recessive?

Answer 6

The phenotype is only expressed when both alleles code for the recessive feature

Question 7

What is codominance?

Answer 7

Both alleles contribute to the phenotype without mixing

Question 8

What does it mean when a gene has multiple alleles?

Answer 8

There are more than two possible versions of an allele

Question 9

What is an example of codominance?

Answer 9

Blood type groups

Question 10

What is crossing over?

Answer 10

Where sections of DNA are exchanged between homologous chromosomes

Question 11

What is independent assortment?

Answer 11

There are multiple variations and combinations of maternal and paternal chromosomes