Download 1 Sex chromosome what number? 23 2 Which sex chromosome is

1 Sex chromosome what number? 23
2 Which sex chromosome is bigger – holds more genes? X
3 Which gender exhibits sex-linked traits most often? male
4 Example of sex-linked traits. Baldness, colorblindness, hemophilia
5 Are sex-linked traits dominant or recessive? recessive
6 Why don’t females exhibit sex-linked traits as often? The x chromosome can help protect a woman from the recessive
gene. The male doesn’t have a gene on the y to protect him from the gene.
7 Which genotype shows a genotype of male with a sex-linked trait? xx xhx xyh xhy
8 Which type of cell division yields four daughter cells? meiosis
9 Which type of cell division is related to sexual reproduction? meiosis
10 What happens to sister chromatids in meiosis II?
A. They duplicate.
B. They separate.
C. They remain together.
D. They do not take part.
11 The diagram on the right shows a cellular process that occurs in organisms. What is the name
of this process?
A. meiosis
B. mitosis
C. endocytosis
D. phagocytosis
12 Why is it important for the daughter cells to divide a second time in meiosis?
A. The second division switches parts of matching chromatids to increase genetic variation.
B. The second division forms four identical cells to ensure that all offspring have the same traits.
C. The second division sorts chromosomes into cells that are the same as the parent cells.
D. The second division forms haploid cells that can combine with other haploid cells during fertilization.
13 Multicellular organisms use mitosis for growth, development and
A. Apoptosis
B. repair
C. reproduction
In a single celled organism, mitosis is used for ____.
A. development
B. reproduction
C. growth
D. interphase
D. repair
15 Which of the following occurs during mitosis?
A. The cell membrane pinches one cell into two.
B. The chromosomes of the parent cell are copied.
C. The parent cell takes in nutrients and doubles in size.
D. The nucleus of the parent cell divides into two nuclei.
16 The diagram on the right shows two strawberry plants. Plant 2 is produced
asexually from Plant 1. If the leaf cells of Plant 1 have 56 chromosomes, how
many chromosomes will be found in the leaf cells of Plant 2?
A. 14
B. 28 C. 56 D. 112
17 Which of the following phases of mitosis is represented by the diagram on the
right?
A. prophase
B. metaphase C. anaphase
D. telophase
18 Which of the following best explains why meiosis results in greater genetic diversity than mitosis?
A. After meiosis, daughter cells are diploid and have twice as much genetic material, which can be divided in many
more possible combinations.
B. After meiosis, haploid daughter cells are fertilized, which doubles their number of chromosomes and increases the
number of possible genes.
C. During meiosis, chromosomes assort themselves independently of each other, which allows for more different
possible combinations of chromosomes.
D. During meiosis, more daughter cells are produced, which increases the likelihood that fertilization will occur.
19 Which of the following best compares the processes of mitosis and meiosis?
A. Mitosis involves one division cycle and results in diploid daughter cells, while meiosis consists of two division cycles and
results in haploid gametes.
B. Mitosis involves one division cycle and results in haploid gametes, while meiosis consists of two division cycles and
results in diploid daughter cells.
C. Mitosis involves two division cycles and results in diploid daughter cells, while meiosis consists of one division cycle and
results in haploid gametes.
D. Mitosis involves two division cycles and results in haploid gametes, while meiosis consists of one division cycle and
results in diploid daughter cells.
20 Which type of reproduction leads to increased genetic variation in a population?
A. Parthenogenesis
B. asexual reproduction
C. sexual reproduction
D. vegetative reproduction
21 Which row in the chart on the right indicates
the correct process for each event indicated?
A. row 1
B. row 2
C. row 3
D. row 4
22 Mitosis and meiosis are processes involved in cellular reproduction. Which of the following describes an event that results from
mitosis but NOT meiosis?
A. two stages of cell division
B. replication of cellular genetic material
C. daughter cells that are identical to the parent cell
D. four daughter cells that are produced from each parent cell