Mitosis: Revenge of the Cell Division!
If the M checkpoint is not cleared, what stage of mitosis will be blocked?
What is anaphase?
Meiosis usually produces ________ daughter cells.
What are four daughter cells?
Labrador retrievers’ fur color is controlled by two alleles, E and B. Any dog with the ee__ genotype develops into a yellow lab, while B_E_ dogs become black labs and bbE_ dogs become chocolate labs. This is an example of _____.
What is epistasis?
Water moves via osmosis _________.
What is from an area with a high concentration of water to one of lower concentration?
How many nucleotides are in 12 mRNA codons?
What are 12?
Which protein is a positive regulator that phosphorylates other proteins when activated?
What is cyclin-dependent kinase (Cdk)?
When do the four daughter cells separate?
What is anaphase II?
Assuming no gene linkage, in a dihybrid cross of AABB x aabb with AaBb F1 heterozygotes, what is the ratio of the F1 gametes (AB, aB, Ab, ab) that will give rise to the F2 offspring?
What is 1:1:1:1?
What problem is faced by organisms that live in fresh water?
What is their bodies tend to take in too much water?
The RNA components of ribosomes are synthesized in the ________.
Which negative regulatory molecule can trigger cell suicide (apoptosis) if vital cell cycle events do not occur?
What is p53?
How do telophase I and telophase II differ during meiosis in animal cells?
What is cells remain diploid at the end of telophase I, but are haploid at the end of telophase II?
How many different offspring genotypes are expected in a trihybrid cross between parents heterozygous for all three traits when the traits behave in a dominant and recessive pattern? How many phenotypes?
What are 8 genotypes; 27 phenotypes?
What is the combination of an electrical gradient and a concentration gradient called?
What is an electrochemical gradient?
The AUC and AUA codons in mRNA both specify isoleucine. What feature of the genetic code explains this?
What is redundancy?
___________ are changes to the order of nucleotides in a segment of DNA that codes for a protein.
What are gene mutations?
The pea plants used in Mendel’s genetic inheritance studies were diploid, with 14 chromosomes in somatic cells. Assuming no crossing over events occur, how many unique gametes could one pea plant produce?
What is 128?
If black and white true-breeding mice are mated and the result is all gray offspring, what inheritance pattern would this be indicative of?
What is incomplete dominance?
What happens to the membrane of a vesicle after exocytosis?
What is It fuses with and becomes part of the plasma membrane?
A scientist randomly mutates the DNA of a bacterium. She then sequences the bacterium’s daughter cells, and finds that the daughters have many errors in their replicated DNA. The parent bacterium likely acquired a mutation in which enzyme?
What is DNA Polymerase?
What is the main prerequisite for clearance at the G2 checkpoint?
What are an accurate and complete DNA replication has occurred?
What phase of mitotic interphase is missing from meiotic interkinesis (before meiosis II)?
What is s phase?
The ABO blood groups in humans are expressed as the IA, IB, and i alleles. The IA allele encodes the A blood group antigen, IB encodes B, and i encodes O. Both A and B are dominant to O. If a heterozygous blood type A parent (IAi) and a heterozygous blood type B parent (IBi) mate, one quarter of their offspring will have AB blood type (IAIB) in which both antigens are expressed equally. Therefore, ABO blood groups are an example of:
What are multiple alleles and codominance?
How does the sodium-potassium pump make the interior of the cell negatively charged?
What is by expelling more cations than are taken in?
. Bacterial transformation is a major concern in many medical settings. Why might health care providers be concerned?
What is all of the above?