Punnet Squares
In rabbits, black fur is dominant to white fur. If you cross a BB male with a Bb female, what is the probability their offspring has white fur?
0%
Which code is used to determine the amino acid sequence/
The mRNA
What is a dominant trait
A trait that masks another trait, you only need one copy of the dominant allele to show the trait
Proteins
In guinea pigs, swirly fur is recessive to smooth fur. Two guinea pigs that are heterozygous for smooth fur mate, what are the chances their offspring has swirly fur?
25%
What happens during transcription?
The DNA is copied into mRNA
What is heredity?
The study of inheritance
Transcribe this DNA into mRNA:
ATTGACTGC
UAACUGACG
To predict the outcome of a genetic cross
What bases pair together when transcribing DNA to mRNA?
A with U
T with A
G with C
C with G
What is the difference between heterozygous and homozygous
Heterozygous is where there is one copy of each allele, and homozygous is where the 2 alleles are the same
Can you always tell an organism's genotype from it's phenotype? Why or why not?
No! There is no way to know by looking at someone if they have the heterozygous or homozygous genotype if they have a dominant trait
In aliens, 3 eyes is dominant to two eyes. What happens when an alien with 2 eyes mates with an alien with 3 eyes, who is heterozygous for that trait. What is the probability of each GENOTYPE?
Ee - 50%
ee - 50%
What are the full names of each base in DNA?
Adenine, thymine, cytosine, guanine
What is an allele?
Alternate versions of a trait
Translate this mRNA into amino acids:
AUGGCCGAU
Met-Ala-Asp
It could actually be theirs because there is a 25% chance that their offspring has 2 eyes.
What is the purpose of the tRNA?
What is a polygenic trait?
A trait that is controlled by more than one gene
What is a substitution mutation
When one base (letter) is swapped for another one