Chapter 11 Biology 1610 – Flashcards

Meiosis and sexual reproduction Fill in the blanks with the words provided.

Drag each label to the correct location on the diagram of a tetrad.

The number of chromosomes per cell is reduced from two sets to one set during

Identify the stages of meiosis by filling in the blanks and then rearrange the sentences to place the stages in the correct order starting with prophase I.

Suppose you have a multicellular eukaryotic organism that is composed entirely of haploid cells. This organism would produce gametes by the process of

Mutations can occur in any cell of the human body that contains DNA. However, only mutations in ________ can be passed on to the next generation.

Which of the following is not haploid?

Animation: How Meiosis Works Which of the following describes meiosis II in humans? Arrange the following events in the proper order in which they occur during meiosis I. 1 = Separation of homologous chromosomes 2 = Synapsis 3 = Crossing-over 4 = Independent assortment In germline cells, when does DNA replicate?

Animation: Meiosis with Crossing Over A crossover in meiosis is an exchange of genetic material between A tetrad is made up of Which of the following statements about crossing over is TRUE? How does crossing over increase variation in a population?

Animation: Random Orientation of Chromosomes During Meiosis Random orientation of homologous chromosomes occurs in ________ of meiosis. Consider a cell that has four pairs of chromosomes. What is the number of possible chromosome orientations in that cell? Random orientation of chromosomes during meiosis increases the amount of variation in the next generation. What other process during meiosis leads to an increase in variation in the next generation? Consider a cell that has a diploid chromosome number of 10 (2N=10). How many possible gametes can this cell produce?

Animation: Stages of Meiosis Synapsis is the side-by-side alignment of At the end of meiosis I, each daughter cell is During anaphase I of meiosis, ____I____ move towards opposite cell poles, whereas during anaphase II of meiosis, ____II____ are separated. During which stage of meiosis would you find haploid cells with 1/4 as much DNA as its mother cell?

Animation: Unique Features of Meiosis Which of the following features are unique to meiosis? A crossover in meiosis is an exchange of genetic material between The four daughter cells produced in meiosis Crossing over is possible due to what event that occurs in meiosis I but not mitosis? The function of sexual reproduction is to increase variation within populations. Meiosis is the molecular mechanism that leads to sexual reproduction. As such, some of the features that make it unique lead to genetic diversity. Which of these unique features are responsible for increasing genetic diversity?