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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
What helps produce proteins?
RNA
What is a form of RNA?
messenger, transfer, or ribosomal
Can exposure to radiation cause a mutation?
yes
How much DNA in chromosomes of humans does not form genes and is junk DNA?
97%
What is a type of mutation?
insertion, deletion, or substitution
Can mistakes happen during the replication of genes?
yes
Recessive traits are shown when a trait is recessive homozygous.
true
