Cell Division
Name the three main stages of the cell cycle in order to create body cells.
Interphase Mitosis Cytokinesis
DNA replication is a semi-conservative process. What does this mean
What is 2 new DNA molecules made each wit one strand from the original molecule.
Organisms that have two identical alleles for a trait are called what?
What is homozygous
Charles Darwin provided evidence behind what mechanism of evolution?
What is natural selection.
Provide one mechanism of evolution
Natural Selection, Mutations, Genetic Drift
Two differences between meiosis and mitosis. 100 points per difference.
Teacher judgment
What are the 3 parts of a nucleotide
What is 1. Nitrogen Base
2. 5C sugar
3. Phosphate Group
Being tall in completely dominant to being short. A heterozygous tall plant in crossed with a short plant . What is the probability that the offspring will be tall?
What is 50%
There are two closely related species of frogs that live in the same habitat. However the red frogs mate in early spring and the green frogs mate in the fall. What type of isolation is described in this example.
What is temporal isolation
Differentiate between co and incomplete dominance.
co- 2 traits together
incomplete- mixing
The failure of chromosomes to separate during meiosis is referred to as what?
What is non-disjunction
If the RNA sequence of nitrogen bases is
A U G U C U.... What DNA sequence was transcribed to make it?
What is T A C A G A
What would be the 4 gamete combinations of an organism who has this genotype: AaBb
What is AB, Ab, aB, ab
A type of genetic drift when a small group of individuals in a population leave and start a new population somewhere else.
What is founder effect
List two major differences between DNA and RNA.
Answers will vary
What type of chromosomal rearrangement is shown in the picture?
What is an inversion
See Picture. What effect does this mutation have on the amino acid sequence. Hint: not point or frameshift.
What is non-sense
What is the law of segregation
These are non-functional features fully developed and functioning in earlier species but serve little or no present purpose for an organism.
What are vestigial structures
How is natural selection different than genetic drift?
Nat Selection: survival of the fittest
Genetic Drift: survival due to chance/random
If you are looking at a karyotype analyzing chromosome number of an organism and you see pairing that has 3 chromosomes instead of 2, what word would you use to describe this?
What is trisomy.
List the 3 steps of DNA replication and mention the enzymes responsible for each.
What is
1. Unwind - DNA Helicase
2. Unzip - DNA Helicase
3. Complementary Base Pairing - DNA Polymerase
Describe the process of crossing over. What stage of meiosis does it occur in?
The exchanging of genetic information between non-sister chromatids; prophase 1.
List three forms of evidence scientist use as evidence for evolution.
What is DNA Analysis, embryology, analyzing fossils.
Show a cross between a carrier for red eyes female and a white eyed male. Red is dominant to white. What percentage of the males will have red eyes?
25%