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How many factors did Mendel say each parent contributes for each trait?
1
What is part of DNA that codes for a trait on a chromosome.
gene
What is an example that represents a homozygous recessive genotype?
rr
What do the letters on a Punnett Square represent?
alleles
If genotypes of offspring are Oo, Oo, oo, oo, what's the ratio if orange is dominant to purple?
2/4 or 50%
If man is heterozygous for a recessive trait and mom is homozygous dominant will recessive gene be passed?
0%
How many pea plants did Mendel test?
hundreds
Recessive traits are observed when how many recessive factors are present?
2
Did Mendel test and record pea plants for length of the leaf?
no
Recessive traits are shown when a trait is recessive homozygous.
true
If you are looking at 4 tall pea plants, what is the possible genotype?
TT, or Tt
If you are looking at 4 tall pea plants, what is the phenotype?
tall
A man is heterozygous for cystic fibrosis which is a recessive trait. A woman is homozygous dominant. What are the chances their children will have cystic fibrosis?
0%
Genetics is the study of ____?
heredity
In a Punnett Square, what does the capital letter represent?
the dominant allele
What is self-pollination?
when pollen falls on the same plant
