10) At what point during meiosis is the ploidy of the cell reduced by half? A) During Metaphase I B) During Metaphase II C) By the end of Telophase I D) By the end of Telophase II

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a.)Meiosis in a plant b.)Meiosis in an animal c.)Telophase II d.)Meiosis in an animal e.)Mitosis in a plant

During meiotic prophase in a eukaryotic cell, Spo11 initiates recombination by causing a double-strand break in DNA between Gene   A and Gene   B on one sister chromatid. Which of these events will occur prior to formation of a Holliday junction?                         A)   A heteroduplex forms due to pairing of Gene   A and Gene   B.                   B)   Resolvase cuts all four chromatids.            C)   Spo11 causes a double-strand break in a nonsister chromatid.            D)   Strand invasion causes one strand of the uncut chromatid to form a D loop.            E)   Branch migration lengthens the heteroduplex region to include Gene   A and Gene

4) What is occurring during the Anaphase stage of mitosis, such as is shown in the figure to the right? A) The DNA is being replicated. B) The homologous chromosomes are separating. C) Sister chromatids are being pulled to opposite poles. D) A cleavage furrow is forming to divide the cell. Inid parents made gametes using

In a diploid cell, two homologous chromosomes are: A) similar , but from two different species B) mirror images of each other C) similar, but from two different people D) identical to each other E) copies of each other

Select all of the statements that are true of meiosis A) Chromosome number is reduced to haploid status B) It generates genetic diversity among daughter cells C) Daughter cells are identical to each other but not to the parent D) It generates exact copies of the parent cell E) It is used for growth and repair of the organism F) It involves two rounds of cell division

Diploid = 2n with n being # of chromosomes so, a) Haploid = n b) Haploid = 3n

20. Which of the following occurs during mitosis but not during meiosis I? (A) The chromosomes are pulled to opposite poles of the spindle apparatus. (B) The chromatids of each chromosome are separated. (C) The nuclear envelope breaks down. (D) Both synapsis and crossingover take place. (E) The diploid number of chromosomes is reduced to the haploid number. 21. Oxygen consumption can be used as a measure of metabolic rate because oxygen is (A) necessary for ATP synthesis by oxidative phosphorylation (B) necessary to replenish glycogen levels (C) necessary for fermentation to take place (D) required by all living organisms (E) required to break down the ethanol that is produced in muscles 22. Membranes are components of all of the following EXCEPT a (A) microtubule (В) nu (C) Golgi apparatus (D) mitochondrion (E) lysosome 23. In a mesophyll cell of a leaf, the synthesis of ATP occurs in which of the following? I. Ribosomes II. Mitochondria III. Chloroplasts (A) I only (В) II only (C)…

Cleavage is a unique type of cell division that occurs____ a ) during meiosis I only b) during meiosis II only d ) after fertilization of the egg e ) in both meiosis I and II