Unit Two- 2.3 Chromosomes, Genes, DNA Flashcards
1
Q
A
2
Q
what is a different form of gene called
A
allele
3
Q
why do characteristic differ
A
variations if gene sequence (different alleles) will cause different proteins to be produced
4
Q
how many genes do humans have
A
approx. 30000
5
Q
homologous chromsomes
A
-pairs of chromosomes that carry genes for the same traits
6
Q
what do proteins produce
A
traits for genes code
7
Q
enzymes protein
A
-protein
-catalyze chem reactions within cells
8
Q
hormones protein
A
-protein
-influence cellular & metabolic functions
9
Q
structural protein
A
-form muscle, skin, hair
10
Q
transport proteins
A
-channels & pumps that move molecules into/out of cells
11
Q
body cells
A
-46 chromsomes
-use different genes
