Meiosis & Chromosomes Chpt 6.1_6.2
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by Kathy Egbert
| 99 Questions
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Last Name, First Name
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Class Period
A A1
B A2
C A4
D A5
E A6
F A7
G A8

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A body
B sex
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These types of cells are all the cells in an organism except the reproductive gametes.
True
False
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A mitosis
B meiosis
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A repair cells in an organism
B maintenance of the organism
C growth and development of the organism
D all of the answers are correct, A, B, & C
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A identical
B unique
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A diploid
B haploid
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This type of asexual reproduction occurs throughout the lifetime of the organism.
True
False
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A body
B sex
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These types of cells are located in the reproductive organs.
True
False
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A mitosis
B meiosis
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These cells make gametes that come together to create an offspring thus passing on genes to future populations.
True
False
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A identical
B unique
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A diploid
B haploid
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Sexual reproduction occurs only at certain times in the life cycle of an organism.
True
False
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This graphic represents both body and germ cells.
True
False
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Half of your chromosomes come from your Dad.
True
False
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And, half of our chromosomes come from your mother.
True
False
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includes "autosomes" which consist of 22 homologous pairs.
True
False
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sex chromosomes in mammals include an ____ chromosome
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sex chromosomes include a ____ chromosome
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A female
B male
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A female
B male
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enter answer as a number
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spell it correctly so you can receive credit for your answer
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Each pair of chromosomes is called a "homologous" pair because one comes from the mother and one from the father.
True
False
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The letter _____ is used to represent the female sex chromosome.
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The letter ___ is used to represent the male sex chromosome.
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The gene affiliated with diabetes is located on chromosome number 2.
True
False
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type the chromosome number
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type the chromosome number
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type the chromosome number
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just give the chromosome number
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again, just give the chromosome nubmer
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type the chromosome number
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just give the chromosome number
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type the chromosome number
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give the chromosome number
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give the chromosome number
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Hemophlia is associated with a gene on the X chromosome, number 23.
True
False
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A sex-linked characteristic is associated with one of the sex chromosomes (X and Y). Since the Y chromosome is very small and doesn't contain very many genes, most of the sex linked characteristics are on the X chromosome.
True
False
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spell the condition correctly to receive credit
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You probably wouldn't have the deleterious characteristic because the same normal gene on its chromosome pair would mask its presence.
True
False
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Somatic skin cells could be damaged and cause skin cancer, or nothing may happen.
True
False
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There wouldn't be any deleterious consequences for your offspring.
True
False
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Downs Syndrome is the result of an extra #21 chromosome. This is one case where the offspring usually survives having an additional autosome. Most of the time an additional or missing autosome results in an aborted embryo.
True
False
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A small
B large
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DNA is contributed to the embryo from the sperm cell.
True
False
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The sperm cell has the ability to swim/move to locate the egg for fertilization.
True
False
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A small
B large
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The egg also contributes DNA to the embryo.
True
False
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The egg provides all other materials necessary for the embryo to grow and develop.
True
False
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An appropriate picture of spermogensis has been inserted for you. It is from your textbook Fig. 6.6, page 176. You should be able to recognize this figure and draw it yourself if asked.
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type only the number of cells
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A figure for oogenesis has been inserted for you. It is from your textbook Chapter 6.6, page 176. You should be able to recognize this figure and draw it yourself if asked.
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The end result in oogensis is 1 egg and 3 polar bodies.
True
False
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Three polar bodies result from an unequal division in female oogensis.
True
False
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A X
B Y
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A diploid (2n)
B haploid (1n or n)
C
D
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Gametogenesis litterly means "a gamete is born."
True
False
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This is a figure of Prophase I.
True
False
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Is the cell haploid or diploid?
A haploid
B diploid
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This figure is Prophase II.
True
False
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This cell is
A haploid
B diploid
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This is Anaphase II.
True
False
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The cell is
A hapoid.
B diploid.
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This figure shows the end of Telophase I and cytokinesis in Meiosis I.
True
False
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The cell is
A haploid after cytokinesis.
B diploid after cytokinesis.
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This figure shows a cell in Prophase II of Meiosis II.
True
False
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These cells are
A haploid.
B diploid.
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This figure shows Metaphase II of Meiosis I.
True
False
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These cells are haploid.
True
False
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This figure shows cells at Anaphase II of Meiosis II.
True
False
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These cells are haploid.
True
False
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This last figure shows the four cells created at the end of Telephase II and cytokinesis of Meiosis II.
True
False
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Each of these four cells is diploid.
True
False
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A chromosome
B chromatid
C chromatin
D homologous
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Two chromosomes that are very similar and carry the same genes are called "homologous chromosomes".
True
False
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type only the number
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again, type only the number
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spell the phase correctly to get credit for your answer
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In Prophase I, the term to describe the homologus chromosomes pairing up is called "synapsis". This allows the chromosomes to come in very close contact allowing "crossing over" which increases genetic variability.
True
False
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Genetic variability continues to be increased in Metaphase I when the homologous pairs of chromosomes assort independently along the metaphase plate.
True
False
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be sure to spell the phase correctly to receive credit
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read the question carefully to be sure you answer the question being asked
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Asking for the numer of autosomes in a human gamete.
read carefully
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Again, read carefully, asking for number of pairs in an embryo
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just give the number; read carefully
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enter the number; read carefully
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To maintain the correct chromosome number of a species, the gametes must be haploid at fertilization to maintain a viable embryo and produce healthy offspring.
True
False
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In both cases chromosomes line up randomly along the metaphase plate, however, in Metaphase I, homologous pairs line up and are pulled apart decreasing the cell from a diploid to a haploid cell; and in Metaphase II sister chromatids are pulled apart decreasing the amount of DNA in each cell.
True
False
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The sister chromatids are still attached in Telophase I and in Telophase II the sister chromatids have been separated.
True
False
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The number of chromosomes. The cell changes from diploid (2n) to haploid (1n).
True
False
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The amount of DNA is reduced. Sister chromatids are separated. This doesn't reduce the number of chromosomes, just the quantity of DNA.
True
False
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A Meiosis I
B Meiosis II
C Before Meiosis I
D After Meiosis II
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A Yes.
B Yes. The chromosomes are still randomly assorted.
C No.
D No. The maternal and paternal chromosomes would not be mixed up or arranged in a new combination, so genetic diversity would not increase.

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