Vocabulary
A trait that is observable
(what you can see)
phenotype
Homozygous dominant is represented by what letters
Two capital letters such as RR, TT, GG
Who was the first President of the United States?
George Washington
rr
homozygous recessive
What shape is DNA
Double Helix or twisted ladder
The combination of alleles (two) an organism has is called
Genotype
Heterozygous is represented by what letters
One capital and one lowercase like Aa, Hh, or Yy.
How much is a dozen?
12
EE
Homozygous Dominant
What do we call the center of a cell
Nucleus
An allele that shows up even if only one copy is inherited is called
Dominant
Homozygous recessive is represented by what letters?
two lowercase letters such as mm, ff, or bb.
What is the hardest natural substance on Earth?
Diamond
Bb
Heterozygous
What shape is a chromosome?
a chromosome is shaped like an X
A change in DNA that can create a new allele is called a _____?
mutation
How many parental alleles are shown on a Punnett square?
4
Octagon
Heterozygous
What letter does the nucleotide "T" pair with?
A
a genetic characteristic (trait) that appears in an organism's phenotype only when they inherit two identical recessive alleles (one from each parent)
Recessive
If all four boxes show heterozygous alleles what is the percentage that the offspring will also be heterozygous
50%
Green eggs and ham
HH
Homozygous Dominant
How many chromosome pairs are there in a persons karyotype?
23