U5 Molecular Genetics
U6 Classical Genetics
U7 Evolution
Misc. U7 & Climate
Misc. U5 & U6
100
The four nitrogen bases found in DNA are
A, T, C, G
100
A plant is heterozygous for being tall. What is its genotype?
Tt
100
An organism's ability to survive, reproduce and have viable offspring is referred to as
the survival of the fittest
100
The greenhouse gas that has the biggest impact on global warming is
carbon dioxide
100
The trait that is present if there is only one allele is the __ trait
Dominant
200
Translate the following from DNA to mRNA
TAC GGT CAA
AUG CCA GUU
200
A red flower with the genotype RR is crossed with a red flower with the genotype Rr. What is the probability of the offspring being white?
0%
200
Dark and light colored mice live on a volcanic rock background. The dark mice are camoflauged from predators and the light mice are not. Over time there are fewer light mice and more dark mice. This is an example of
Natural selection
200
What major organisms went extinct at the end of the Cretaceous period?
Dinosaurs
200
Which letter on the diagram shows the leading strand of DNA replication
A
300
A nucleotide consists of what 3 components?
Sugar, Nitrogen Base, Phosphate
300
An individual has the blood type AB. What is the type of inheritance that leads to an AB blood type?
Co-dominance
300
The process by which new species form is called
Speciation
300
What type of selection is shown here?
Disruptive
300
What is the job of the helicase enzyme in DNA replication?
Unwinds the DNA, breaks H bond
400
Identify the mutation shown here
Frameshift (deletion)
400
There is one gene for fur color in rabbit, but 6 different colors of fur from the alleles - Cb , CR, CG, Cw. What type of inheritance is this an example of?
Multiple alleles.
400
A barrier to reproduction that involves similar species who breed a different times of year or different times of the day is known as
Temporal Isolation
400
What are homologous structures?
Structures that have the same origin but have different uses (i.e. wings and arms)
400
DNA replication is semi-conservative. What does this mean?
New DNA molecules have one of the original strands and one newly built strand.
500
What part of tRNA bonds to the mRNA during translation?
Anti-codons
500
A mother is a carrier for hemophilia and a father does not have hemophilia. What is the probability they will have a son with hemophilia?
50%
500
A species of tree is almost completely wiped out by a flood. The few survivor reproduce and over time the population returns with less variation than the original population. This is an example of
Genetic drift/Bottleneck effect
500
What genetic process causes variation in genetic traits that can lead to natural selection occuring?
Mutations in DNA
500
The allele for yellow fur in mice is recessive and lethal. What is the probability an offspring would not survive in a cross between Yy and Yy parents?
25%