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Exam 10: Meiosis and Sexual Life Cycles

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Question 31

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Which of the following types of cells would be produced by meiosis?

A) a haploid animal cell
B) a diploid animal cell
C) a diploid plant cell
D) a diploid unicellular organism

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Question 32

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Which of the following statements best describes a karyotype?

A) a pictorial representation of all the genes for a species
B) a display of all of the chromosomes of a single cell
C) the combination of all the maternal and paternal chromosomes of a species
D) the collection of all the chromosomes in an individual organism

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Question 33

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Figure 10.6 -Refer to Figure 10.6 above.Which of the progression of events listed corresponds to the series of events that occurs in the life cycle of animals?

If the DNA content of a diploid cell in the G₁ phase of the cell cycle is 24 fg (femtograms) ,then the DNA content of the same cell at metaphase of meiosis I would be

In a cell undergoing meiosis,if centromeres of sister chromatids become disjoined and chromatids separate,what process has occurred?.

The somatic cells of a type of shrub called a privet each contain 46 chromosomes.To be as different as they are from human cells,which have the same number of chromosomes,which of the following must be true?

Scientists have produced a hybrid plant that was the result of the fertilization of gametes between one plant with a diploid number of 24 and another with a diploid number of 20.How many chromosomes would the diploid hybrid plant have?

Which of the following statements is correct regarding human X and Y chromosomes?

The following question refers to the essential steps in meiosis described below. 1) formation of four new nuclei,each with half the chromosomes present in the parental nucleus 2) alignment of homologous chromosomes at the metaphase plate 3) separation of sister chromatids 4) separation of the homologs;no uncoupling of the centromere 5) synapsis;chromosomes moving to the middle of the cell in pairs Which of the steps take(s) place in both mitosis and meiosis?

-A certain (hypothetical) organism is diploid,has either blue or orange wings as the consequence of one of its genes on chromosome 12,and has either long or short antennae as the result of a second gene on chromosome 19,as shown in the figure above.A certain female's number 12 chromosomes both have the blue gene and number 19 chromosomes both have the long gene.As cells in her ovaries undergo meiosis,her resulting eggs (ova) may have which of the following?

If a horticulturist breeding plants known as gardenias succeeds in having a single plant with a particularly desirable set of traits,which of the following processes would be her most probable and efficient route to establishing a line of such plants with that particular set of traits?

A given organism has 46 chromosomes in its karyotype.Which of the following statements is correct regarding this organism?

Which of the following events occurs in meiosis but not in mitosis?

Which of the following structures is found in a pair of homologous chromosomes?

Which phase of meiosis is represented in the figure above?

Which of the following processes happens during meiosis I?

Which phase of meiosis is represented in the figure above?

Which of the following processes leads directly to the formation of gametes in a plant's sexual life cycle?

The karyotype of one species of primate has 48 chromosomes.In a particular female,cell division malfunctions,and she produces one of her eggs with an extra chromosome (25) .The most probable source of this error would be a mistake in which of the following processes?