Genetics

Question 1

Gene

Answer 1

-Section of a DNA that codes for a specific polypeptide.
- Sequence of a nucleotide based in the DNA determines the sequence of amino acids in the proteins primary structure

Question 2

Genotype

Answer 2

The genetic constitution of an organism. All the alleles that an organism possesses

Question 3

Gene pool

Answer 3

All the alleles within an interbreeding population

Question 4

Population

Answer 4

All the individuals of the same species that occupy the same area at the same time

Question 5

Phenotype

Answer 5

The expression of the genetic constitution and its interaction with the environment

Question 6

Allele

Answer 6

Different version of the same gene
Might be recessive, dominant or codominant

Question 7

Locus

Answer 7

The position where different alleles of the same gene are found

Question 8

Homozygous

Answer 8

Two copies of the a gene are the same allele

Question 9

Heterogeneous

Answer 9

If two copies of a gene are different alleles

Question 10

Dominant allele

Answer 10

If an allele is dominant it will always be expressed in the phenotype

Question 11

Recessive allele

Answer 11

If an allele is recessive it will only be expressed in the phenotype if the if the genotype is homozygous

Question 12

Codominant allele

Answer 12

Equally expressed wishing the phenotype

Question 13

Genetic crosses

Answer 13

Diagrams which show the way in which alleles are passed from one generation to the next.An allele is represented by a letter