patterns of inheritance

Question 1

Phenotype

Answer 1

the physical characteristics of an organism

affected by environment and genotype

Question 2

Genotype

Answer 2

the combination of alleles

Question 3

differences in the genotype of the same species

Answer 3

caused due to:
* rearrangement of genes during meiosis
* inheritence of genes from two different induviduals in sexual reproduction

Question 4

True Breeding

Answer 4

crossing of two homozygous induviduals in which the offspring has the same phenotype*

*unless a mutation occurs

Question 5

Codominance

Answer 5

both alleles (dominant and recessive) are expressed fully

Question 6

Sampling errors

Answer 6

1. reproduction is a result of chance: the predicted offspring might not come as the combination of alleles is random
2. some offspring die during the experiment
3. inefficient sampling techniques: ex, very easy to let drosophilia escape

Question 7

Locus

Answer 7

the site of the gene on a chromosome

Question 8

Allele

Answer 8

the alternate version of genes