key terms Flashcards
1
Q
Define Gamete
A
A sex cell, produced by mitosis, contains half the DNA
2
Q
Define chromosome
A
Structure which is used to store DNA we have 23 pairs
3
Q
Define gene
A
A length of DNA that codes for part of a protein
4
Q
Define allele
A
Different versions of the same gene
5
Q
Define dominant
A
The allele that is expressed if present
6
Q
Define recessive
A
The allele that is only expressed if 2 recessive alleles are present
7
Q
Define Homozygous
A
A matching pair of alleles
8
Q
Define heterozygous
A
Different alleles
9
Q
Define Genotype
A
The type of genes that you have
10
Q
Define phenotype
A
The characteristics you have because of your genotype
11
Q
What is pepsin
A
is an endopeptidase secreted by gastric glands.(stomach) = pH 1-2
12
Q
what is trypsin
A
is an endopeptidase made in the small intestine
