a number describing how likely an event is
probability
Two heterozygous parents make what kind of kids? What is the genotype ratio?
1:2:1
Where do cells store DNA?
nucleus
a specific segment of DNA that codes for something
gene
What is on the outside of the Punnett Square?
Parent alleles
an organism that has two identical alleles for a trait
homozygous
If you join one homozygous and one heterozygous, what is the genotype ratio?
0:2:2
What is DNA used for?
codes for traits/ instruction manual
DNA is passed from parent s to offspring in __________.
chromosomes
What is on the inside of the Punnett Square?
The children's genes
an organism's physical appearance
phenotype
If you join 2 homozygous parents, what is the genotype ratio?
0:0:4
How many chromosomes do cow parents each have?
30
chromosomes come in _______________
pairs
What is a dominant eye color in humans?
Brown
an organism's genetic makeup, or allele combinations
genotype
What is the phenotype ratio for two homozygous parents?
0:4
How many chromosomes does each parent have in human beings?
23
each chromosome contains many __________
genes
How many weeks can you live without food before you die?
3 weeks
an organism that has two different alleles for a trait
heterozygous
What is the phenotype ratio for two heterozygous parents?
3:1
What holds the chromosomes from the dad and and the mom?
sperm/egg
inherited chromosomes and genes determine a person's _________________
traits
What color eyes are recessive in rabbits?
red