Biomolecules
Genetics
Cell Cycle
Evolution
Potpourri
100
What is the monomer of a nucleic acid?
Nucleotide
100
An organism that has two different alleles for the same gene.
Heterozygous
100
The phase of the cell cycle where DNA is replicated.
S phase
100
The strongest type of evidence for natural selection.
Molecular Homology (similarity of DNA or amino acid sequences)
100
The base-pairing rules in RNA.
A-U, C-G
200
An enzyme is an example of a --
Protein
200
The physical expression of an organism's genes.
Phenotype
200
The four parts of mitosis.
Prophase, Metaphase, Anaphase, Telophase
200
Mechanism for evolution where organisms breed choosing for a specific trait - the "ring finger"
Non-random mating.
200
Based on the data, which organism is most closely related to the rabbit?
Pig
300
Which biomolecules are involved in energy in the cell? (be specific, or you get no points)
Lipids provide long-term energy storage, carbohydrates are short-term energy.
300
aa
300
Uncontrolled cell growth, often caused by a mutation that affects the cell cycle checkpoints.
Cancer
300
What is an adaptation?
A characteristic that improves an organisms chances to survive and reproduce.
300
Who is this?
Charles Darwin
400
How are lipids involved in maintaining homeostasis in a cell?
Cell membranes are made of lipids, and they maintain homeostasis in the cell by controlling what enters and leaves the cell.
400
If two parents are heterozygous for a genetically inherited dominant trait, what is the probability that they will have a child together who has this trait in his or her phenotype?
75%
400
In DNA synthesis, what would the new strand of DNA made from the following strand be: 3' - ACTTACGGA - 5'
5' - TGAATGCCT - 3'
400
How does natural selection occur?
Individuals with adaptive traits are more likely to survive and pass on their traits to offspring.
400
S. carcini is a barnacle that attaches to the underside of the green crab. The barnacle finds a hole in the green crab's exoskeleton, then uses microscopic hairs to feed on nutrients from the green crab's blood. The barnacle also lays its eggs in the green crab reproductive system, which sterilizes the green crab. Which term describes the role of S. carcini in this relationship?
Parasite
500
Coding for proteins, Storing genetic information
500
The expected genotypes of the offspring of a cross between a male and a female are: 50% homozygous dominant (BB), 0% homozygous recessive (bb), and 50% heterozygous (Bb). What is the genotype of the parents if allele B is dominant over allele b?
The genotype of one parent is BB, and the genotype of the other parent is Bb.
500
Describe the phase that comes immediately after this phase?
The chromosomes are at opposite ends of the cell, a nucleus starts to form around each of the groups of chromosomes, the cell membrane begins to pinch in.
500
Rough-skinned newts produce a strong toxin called TTX as a defense mechanism against predators. Garter snakes can tolerate a very limited amount of the toxin. However, several populations of garter snakes have recently shown an increased tolerance for TTX. The different populations of snakes have independently acquired a gene variation that allows them to better block the effects of the toxin. What is the most likely to increase in garter snakes?
The frequency of the variant gene in the garter snake populations
500
What is the role of oxygen in photosynthesis and in cellular respiration?
Oxygen is released in photosynthesis and used in cellular respiration to produce energy.