Gene Expression
Prokaryotes lack ______ in their genes, so they can do transcription uninterrupted
Introns
The two DNA strands of restriction sites are usually ________. The complementary nucleotide sequence is the same barckwards and forwards.
Palindromic
Natural selection can only occur if the trait has _______ and is _______
Members of a clade occupying colder environments tend to be _______ while those living in warmer environments tend to be small
Larger; smaller, Bergmann's rule
What is Devin's favorite color?
Red
Alternative splicing allows a single mRNA to be used as the template for multiple different polypeptides. This is an example of _________ regulation
Post-transcription
PCR involves denaturing DNA to break the ______ bonds, annealing primers to the DNA, and extending the fragment using Taq polymerase
Hydrogen bonds
Similar structures between different species that imply the existence of a past common ancestor
Homologous structures
A male lion leaves his natal pride in search of a new pride to claim, transferring genes between the population. This is an example of _______
Gene flow
What is the 2nd most popular girl dog name?
Bella
Acetylating a histone protein can loosen the chromatin fibers, giving RNA polymerase access to certain genes. This is an example of ________ regulation
Epigenetic
A hemophilia gene has fewer restriction sites for Sma I than a normal gene does.
Running both samples through gel electrophoresis, would the hemophilia gene have (more/less) bands and would they move (far/little)?
Studying mammals A, B, and C. You find there are 3 molecular cytochrome differences between Mammals A and B and 10 differences between Mammals B and C. Which two mammal species are more closely related?
Mammals A and B
Releasing industrial smoke into the air puts soot in trees, making the shadowtail butterflies with lighter phenotypes stand out more to predators. This is an example of _______ natural selection
Directional natural selection
What is the most played song on Spotify?
Blinding Lights - the Weeknd
Post-translation
Clones of multicellular organisms may not live long due to molecular ____-related issues
Age-related
Two species of birds live on the same island. The one population sings mating songs in the morning while the other sings in the afternoon. This is an example of _______ isolation.
Temporal isolation
In a forest, a harsh storm exposes various new fruits and nuts to a population of squirrels. This leads to rapid speciation of the original group. This is an example of...
Adaptive Radiation
This part of the egg is a reservoir for water, proteins, minerals for a developing bird embryo
Albumen (egg whites)
A certain bacterium does not usually bother synthesizing sucrase-alpha-dextrinase. When saccharides are present in the environment, it pulls up the operator switching the operon on. This operon is _______
Inducible
Retroviruses use this enzyme to incorporate their RNA genome into the host's DNA genome
Reverse transcriptase
Two species of crickets occupy the same backyard, however, one lives in the grass and the other lives in a trees. For the very few individuals that do reproduce, the zygote fails to develop correctly. What two isolating mechanisms are present?
Ecological isolation and hybrid inviability
Within a population of lobsters, both the alpha males who fight for mates AND the smaller males who sneak into the alpha male's territory to gain access to mates have found success. Eventually, these differences in mating habits lead to speciation. This is an example of _______ natural selection
Diversifying natural selection
What was the most watched TV program in American history?
Apollo 11 Moon Landing