DNA
T&T
genes and mutations
Species et al.
The Last Lecture
100

We're called A, C, T, G

What are DNA bases?

100
I transcribe RNA from a DNA template
What is RNA polymerase?
100

I am a mutant that results from moving pieces of one chromosome to another and visa versa.

What is translocation?

100

the total genetic composition of a population

What is a gene pool?

100

aggregates of abiotic molecules surrounded by a membrane or membrane-like structure. These entities may have been able to carry out simple metabolic reactions.

What is a protocell?

200

I am the substitute for T in RNA

What is uracil?

200
I am the name for critical "promotional" sequences just ahead of the start site for transcription. Do I need to promote myself?
What is a promoter?
200

These GENES are responsible for tissue or organ development in specific locations of the developing organism.

What are homeotic genes?

200

the name of the cross between a grizzly bear and a polar bear

What is groler bear?

200

commonly found, widely distributed fossils that are limited in time span used to date other fossils. Ex: branchiopod fossils

What are index fossils?

300

The enzyme that copies a new strand of DNA from a template DNA strand

What is DNA polymerase?

300
We are joined together during splicing of mRNA.
What are exons?
300

are the “normal” version of a gene that participates in the regulation of cell growth/division. The mutated version results in cancer.

What are proto-oncogenes?

300

blocks to reproduction that impede the mating process or hinder fertilization of the ovum

What are prezygotic barriers?

300

All land masses were joined into a supercontinent about 250 million years ago

What is the Pangaea?

400

The enzyme that unwinds the DNA helix so that DNA can be replicated

What is helicase?

400
three nucleotides, usually corresponding to a single amino acid.
What is codon?
400
I am a mutant having a single base change, such as occurs in sickle cell anemia. What's the point?
What is point mutation?
400

When a new species arises without geographic separation.

What is SYMPATRIC SPECIATION?

400

evolutionary change where groups of organisms form many new species that adapt to newer environments.

What is adaptive radiation?

500

A region of repetitive nucleotide sequences at each end of a chromosome, which protects the end of the chromosome

What are telomeres?

500
the synthesis of proteins from messenger RNA
What is translation?
500
mobile DNA elements
What are transposons?
500

A sudden change in the environment, often a catastrophic event, can dramatically reduce the size of a population and skew the gene frequency of the surviving population.

What is the bottleneck effect?

500

A molecule found in the cell walls of bacteria, especially abundant in Gram positive bacteria.

What is peptidoglycan?

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