SB3g Alleles Flashcards
1
Q
Gene?
A
a section of DNA that codes for proteins.
2
Q
Alleles?
A
different versions of the same gene.
3
Q
Chromosome?
A
carries genetic information in form of genes.
4
Q
Dominant?
A
.stronger allele
.always expressed
.(B)
5
Q
Recessive?
A
.weaker allele
.only expressed if two copies are present
.(b)
6
Q
Homozygous?
A
.two of the same allele
.BB/bb
7
Q
Heterozygous?
A
.different alleles
.Bb
8
Q
Phenotype?
A
physical appearance coded for by genotype.
9
Q
Genotype?
A
combination of alleles an individual has.
10
Q
If a mother is heterozygous for curly hair (dominant) has children with a man homozygous for straight hair (recessive), calculate the percentage of offspring with curly hair.
A
50% chance of the children having curly hair.
