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DNA
Ecology
Genetics
Evolution
Miscellaneous
100
A single DNA strand has the code ATCGGGA. What is the code of its complementary strand?
TAGCCCT
100
Differentiate between a biotic and abiotic factor. Give an example of each.
alive; not alive
100
Differentiate between a genotype and phenotype. Give an example of each.
TT, tall
100

There are two variations of a species of peppered moth. One is a very light gray and the other is black. All of the moths live on trees with white bark. What is most likely to lead to more black moths and fewer gray moths?

Air pollution pollution stains the tree bark a darker color.

100
Differentiate between a Eukaryote and Prokaryote. Give an example of each.
Eukaryote = Enclosed DNA in nucleus; complex; everything else Prokaryote = Loose DNA; simple; bacteria
200
What is the chemical name for DNA?
Deoxyribonucleic acid
200

All the energy in a food chain can ultimately be traced back to where?

Sun

200
The mother is heterozygous for a "widow's peak." The father is homozygous recessive for a "widow's peak." If widow's peak is dominant, what is the probability their child will have a widow's peak?
50%
200

What is a branching diagram showing the cladistic relationship between a number of species

Cladogram / Phylogenetic Tree

200

If a DNA strand is composed of 20% adenine, what percent guanine is that strand made up of?

30%

300
Identify the 3 components of a DNA nucleotide?
nitrogenous base, phosphate, deoxyribose sugar
300

What type of ecological relationship is it called when both organisms involved benefit?

Mutualism

300

What is the name of the theory that a trait that can be turned on or off by environmental factors. (example: due to diet, exercise, life events/decisions)

Epigenetics

300

Who's study became famous for looking at different beak shapes in finches on the Galapagos island in finches that were closely related?

Charles Darwin

300

If there are 38 chromosomes in cats body cells, how many chromosomes are in an unfertilized cat's egg cell?

19

400
What is the name for the type of bond that holds two strands of DNA together?
Hydrogen bonds
400

Organisms that are best suited for their environment are most likely to survive and reproduce, contributing more to the population. This concept can best be described as 

Natural Selection

400
A red flower (RR) is crossed with a white flower (WW). The resulting flower is pink. What is the name for this type of inheritance?
Incomplete dominance
400
What is a homologous structure? Give an example. What do homologous structures suggest?
similar structure, different function. Closely related
400

At the start of Meiosis you begin with ___ cell(s). After Meiosis you end with ___ cell(s).

1, 4

500

Codons are found on ____________ and anticodons are found on ____________.

mRNA ; tRNA

500
A biologist captures, tags, and releases 15 Steller Sea Lions. 1 year later, she recaptures 20 Steller Sea Lions. 5 of these have tags. What is the approximate population size?
60 Steller Sea Lions
500
A black chicken (BB) mates with a white chicken (WW). The offspring has black and white spots. What is this type of inheritance called?
Codominance
500

What is a vestigial structure? Give and example.

Structure left over from a common ancestor. Tailbone, wisdom teeth, body hair, appendix.

500

Explain in detail what crossing over is.

 Exchange of DNA between paired homologous chromosomes (one from each parent) that occurs during the development of egg and sperm cells