If a cell that had two copies of each chromosome, but problems with the spindle caused the sister chromatids to remain attached to each other and to only one spindle pole, what cells would result? a)  cells with 2 copies of each chromosome and 2 copies of each chromosome b)  cells with 3 copies of each chromosome and 1 copy of each chromosome c)  cells with 6 copies of each chromosome and 2 copies of each chromosome d)  cells with 4 copies of each chromosome and 0 copies of each chromosome e)  cells with 1 copy of each chromosome and 1 copy of each chromosome

Progression of cells through the division cycle is regulated by both extracellular (environmental) and internal signals that monitor and coordinate processes during phases of cycle. a) True b) False

What statement about Cdks/Cyclins below is false? A) Cyclins phosphorylate Cdks B) Cdks are kinases C) Cdk expression is constant during the cell cycle D) Cyclin expression fluctuates during the cell cycle E) Cdk activity fluctuates during the cell cycle

Cyclin B and Cdk1 make up MPF which is important to the regulation and initiation of mitosis. : a) True b) False

The stages of the cell cycle, are in part, regulated by A) sister chromatids B) G2 C) ploidy D) cyclin concentrations

A cell with 40 CHROMOSOMES (diploid number) goes through the cell cycle. What is the number of CHROMOSOMES after doubling the DNA in synthesis phase?   Question 8 options:   a)  40.   b)  called haploid.   c)  80.   d)  20.

The figure below shows the life cycle of the fungus Neurospora. The adult stage of the Neurospora is a multicellular haploid: a. Between which two stages of the Neurospora life cycle do most mitotic cell divisions occur?  b. Neurospora has an arginine amino acid synthesis pathway shown below: Suppose I have a neurospora strain that has a mutation such that it will not grow unless I supplement the media (food) with arginine (but not with citrulline or ornithine). What gene is mutated? Explain your reasoning.  c.  Suppose I take the strain above that only grows with arginine supplements and cross it to a different mutant Neurospora strain that grows with arginine and citrulline supplements but not ornithine supplements. Assming genes A, B and C are unlinked and there is only one mutation per strain: i) What percentage of the progeny will grow on ornithine? ii) What percentage on citrulline? iii) What percentage on arginine? Show your work for i), ii) and iii). [Can be answered in less…

Answer choices: 1) a cell with two complete sets of chromosomes  2) a chromosome pair, one maternal and one paternal 3) the events that occur from the time a cell forms until the time it divides 4) time of cell growth 5) cell division that maintains chromosome number 6) a reproductive mode by which offspring are produced by one parent only 7) an exact copy of a chromosome

If the most basic function of the cell cycle is to accurately duplicate the DNA in the chromosomes and distribute the copies precisely to the daughter cells, why are there gaps between S-phase and M-phase?

please answer (i)