Cp Bio 2 - Chromosomes And Meiosis Quiz - Spring 2014
- 1.
Cells that make up the body tissues and organs are called ___.
- A.
Somatic cells
- B.
Gametes
- C.
Haploid cells
- D.
Binary cells
Correct Answer
A. Somatic cellsExplanation
Somatic cells are the correct answer because they are the cells that make up the body tissues and organs. These cells are diploid, meaning they contain two sets of chromosomes, and they undergo mitosis to divide and replicate. Somatic cells are responsible for carrying out the normal functions of the body and are not involved in sexual reproduction, unlike gametes. Haploid cells only contain one set of chromosomes and are involved in sexual reproduction. Binary cells is not a recognized term in biology.Rate this question:
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- 2.
Cells that are produced by germ cells through the process of meiosis are called ___.
- A.
Somatic cells
- B.
Gametes
- C.
Diploid cells
- D.
Binary cells
Correct Answer
B. GametesExplanation
Germ cells undergo the process of meiosis to produce gametes. Gametes are reproductive cells, such as sperm and eggs, that have half the number of chromosomes compared to somatic cells. This reduction in chromosome number is essential for sexual reproduction, as it ensures that when two gametes fuse during fertilization, the resulting offspring will have the correct number of chromosomes. Therefore, gametes are the correct answer to the question.Rate this question:
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- 3.
Cells that have only one copy of an organisms chromosomes are said to be ___.
- A.
Somatic cells
- B.
Diploid cells
- C.
Haploid cells
- D.
Binary cells
Correct Answer
C. Haploid cellsExplanation
Haploid cells are cells that have only one copy of an organism's chromosomes. This means that they have half the number of chromosomes compared to somatic cells or diploid cells. Haploid cells are typically found in reproductive organs and are involved in sexual reproduction. They combine with another haploid cell during fertilization to form a diploid zygote. In contrast, somatic cells and diploid cells have two copies of each chromosome and are found in the majority of an organism's body tissues. Binary cells is not a term commonly used in biology and does not accurately describe cells with only one copy of chromosomes.Rate this question:
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- 4.
A female gamete ___.
- A.
Is produced in the testes.
- B.
Is called an ovum or an egg cell.
- C.
Is called a spermatocyte.
- D.
Is called a polar body.
Correct Answer
B. Is called an ovum or an egg cell.Explanation
The female gamete, also known as an ovum or an egg cell, is produced in the ovaries, not the testes. Spermatocyte refers to the male gamete, and a polar body is a small non-functional cell produced during oogenesis.Rate this question:
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- 5.
Which of the following is not true of sex chromosomes?
- A.
Sex chromosomes determine the gender of an individual.
- B.
Sex chromosomes contain information about all of your body tissues.
- C.
Sex chromosomes are labeled X and Y in humans.
- D.
Sperm cells have either an X chromosome or a Y chromosome.
Correct Answer
B. Sex chromosomes contain information about all of your body tissues.Explanation
Sex chromosomes contain information about the gender of an individual, not about all of their body tissues. Sex chromosomes determine whether an individual will develop as male (XY) or female (XX) and carry genes related to sexual characteristics. However, they do not contain information about all other body tissues, which is determined by autosomal chromosomes. These autosomal chromosomes carry genes responsible for traits and characteristics other than gender.Rate this question:
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- 6.
Chromosomes that have the same length, the same appearance, and the same gene loci are called ___.
- A.
Homologous chromosomes
- B.
Sex chromosomes
- C.
Autosomes
- D.
Chromosomal triploids
Correct Answer
A. Homologous chromosomesExplanation
Homologous chromosomes are chromosomes that have the same length, appearance, and gene loci. They are pairs of chromosomes, one inherited from each parent, and carry the same genes in the same order. These chromosomes play a crucial role in genetic inheritance and are involved in processes such as crossing over during meiosis. Sex chromosomes, on the other hand, determine the sex of an individual, while autosomes refer to all the other chromosomes that are not sex chromosomes. Chromosomal triploids refer to organisms that have three sets of chromosomes instead of the usual two sets.Rate this question:
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- 7.
Chromosome that contain genes for non-sexual characteristics are called ___.
- A.
Homologous chromosomes
- B.
Sex chromosomes
- C.
Autosomes
- D.
Polar bodies
Correct Answer
C. AutosomesExplanation
Autosomes are chromosomes that contain genes for non-sexual characteristics. They are responsible for determining traits that are not related to the sex of an individual. This includes traits such as hair color, eye color, and height. In contrast, sex chromosomes are responsible for determining the sex of an individual, while homologous chromosomes refer to pairs of chromosomes that carry the same genes. Polar bodies, on the other hand, are small cells that are produced during the formation of eggs and do not contain chromosomes. Therefore, the correct answer is autosomes.Rate this question:
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- 8.
The process by which two gametes fuse and offspring that are a genetic mixture of both parents are produced is called ___.
- A.
Sexual reproduction
- B.
Asexual reproduction
- C.
Binary fission
- D.
Sexual maturation
Correct Answer
A. Sexual reproductionExplanation
Sexual reproduction is the correct answer because it involves the fusion of two gametes, one from each parent, resulting in offspring that inherit genetic traits from both parents. This process leads to genetic diversity and variation in the offspring, as they are a genetic mixture of both parents. Asexual reproduction, binary fission, and sexual maturation do not involve the fusion of gametes and do not result in a genetic mixture of both parents.Rate this question:
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- 9.
Which of the following is not true of fertilization?
- A.
Fertilization results in a diploid cell.
- B.
Fertilization results in a cell called a zygote.
- C.
Fertilization is the fusion of an ovum and a spermatozoa.
- D.
Fertilization occurs in all life forms.
Correct Answer
D. Fertilization occurs in all life forms.Explanation
Fertilization occurs in most but not all life forms. Some organisms, such as bacteria and some fungi, reproduce asexually and do not require fertilization to produce offspring.Rate this question:
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- 10.
A cell that has two copies of each chromosome is said to be ___.
- A.
Diploid
- B.
Haploid
- C.
Triploid
- D.
A gamete
Correct Answer
A. DiploidExplanation
A cell that has two copies of each chromosome is said to be diploid. Diploid cells contain two sets of chromosomes, one from each parent. This is in contrast to haploid cells, which only have one set of chromosomes, and triploid cells, which have three sets of chromosomes. A gamete, on the other hand, is a specialized haploid cell involved in sexual reproduction.Rate this question:
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- 11.
A form of nuclear division that divides a diploid cell into haploid cells and produces gametes is known as ___.
- A.
Mitosis
- B.
Meiosis
- C.
Cellular regeneration
- D.
Binary fission
Correct Answer
B. MeiosisExplanation
Meiosis is the correct answer because it is the form of nuclear division that divides a diploid cell into haploid cells, which are the gametes. Mitosis is a different form of nuclear division that results in two identical diploid cells. Cellular regeneration refers to the process of replacing damaged or lost cells, and binary fission is a type of cell division in prokaryotes.Rate this question:
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- 12.
A process by which gametes are produced through the combination of meiosis and other maturational changes is known as ___.
- A.
Gametogenesis
- B.
Sexual reproduction
- C.
Fertilization
- D.
Binary fission
Correct Answer
A. GametogenesisExplanation
Gametogenesis is the process by which gametes, which are reproductive cells, are produced through the combination of meiosis and other maturational changes. This process occurs in organisms that reproduce sexually and involves the formation of haploid cells, such as sperm and eggs, which can then fuse during fertilization to form a diploid zygote. Gametogenesis is essential for the continuation of a species through sexual reproduction.Rate this question:
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- 13.
A haploid cell produced during meiosis in the ovaries that disintegrates and is reabsorbed is called a(n) ___.
- A.
Ovum
- B.
Polar body
- C.
Spermatozoa
- D.
Oocyte
Correct Answer
B. Polar bodyExplanation
During meiosis in the ovaries, a diploid cell undergoes two rounds of division to produce four haploid cells. These haploid cells are called oocytes. However, only one of these oocytes will mature into an ovum (egg), while the other three will degenerate and disintegrate. These degenerated cells are called polar bodies. Therefore, the correct answer is polar body.Rate this question:
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- 14.
The cells in the ovaries and testes that actually go through meiosis to produce haploid cells are called ___.
- A.
Germ cells
- B.
Oocytes
- C.
Spermatocytes
- D.
Gametes
Correct Answer
A. Germ cellsExplanation
Germ cells are the cells in the ovaries and testes that undergo meiosis to produce haploid cells. Meiosis is a specialized type of cell division that results in the formation of gametes, which are the reproductive cells. Oocytes and spermatocytes are specific types of germ cells that undergo meiosis in the ovaries and testes, respectively. Therefore, the correct answer is germ cells.Rate this question:
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- 15.
Homologous chromosomes exchange information from time to time through a process called crossing over. During which stage of meiosis does this occur?
- A.
Prophase I
- B.
Metaphase II
- C.
Prophase II
- D.
Telophase I
Correct Answer
A. Prophase IExplanation
During Prophase I of meiosis, homologous chromosomes pair up and exchange genetic information through a process called crossing over. This is facilitated by the formation of a protein structure called the synaptonemal complex, which allows for the physical exchange of genetic material between the homologous chromosomes. This genetic exchange increases genetic diversity and is essential for proper chromosome segregation during meiosis.Rate this question:
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- 16.
An immature ovum is called a(n) ___.
- A.
Oocyte
- B.
Spermatocyte
- C.
Gamete
- D.
Polar body
Correct Answer
A. OocyteExplanation
An immature ovum is called an oocyte. This term is used to describe the developing egg cell before it fully matures and is ready for fertilization. The other options, spermatocyte, gamete, and polar body, do not specifically refer to an immature ovum, but rather to other stages or types of reproductive cells.Rate this question:
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- 17.
An immature spermatozoa is called a(n) ___.
- A.
Sperm cell
- B.
Gametetocyte
- C.
Spermatocyte
- D.
Polar body
Correct Answer
C. SpermatocyteExplanation
An immature spermatozoa is called a spermatocyte. Spermatocytes are the cells that undergo meiosis to produce haploid sperm cells. They are the precursor cells to spermatozoa and undergo further development and maturation before becoming fully functional sperm cells. Gametetocyte refers to a cell that can undergo meiosis to produce gametes, but it is not specific to sperm. Sperm cell is a more general term that can refer to any mature spermatozoa. Polar body is a structure that is produced during oogenesis, the process of egg cell development, and is not related to sperm development.Rate this question:
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- 18.
Which of the following does not describe Metaphase I of meiosis?
- A.
The homologous chromosomes line up in the middle of the cell.
- B.
The homologous chromosomes pair up.
- C.
A metaphase plate is present.
- D.
Both copies of chromosome 4 line up on the same side.
Correct Answer
D. Both copies of chromosome 4 line up on the same side.Explanation
In Metaphase I of meiosis, the homologous chromosomes pair up and line up in the middle of the cell on the metaphase plate. This allows for the exchange of genetic material between homologous chromosomes through a process called crossing over. However, both copies of chromosome 4 do not line up on the same side in Metaphase I. This is because the homologous chromosomes can line up on either side of the metaphase plate, leading to genetic variation in the resulting daughter cells.Rate this question:
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- 19.
Which of the describes Anaphase II of meiosis?
- A.
Sister chromatids are pulled to opposite sides of the cell.
- B.
Homologous chromosomes are pulled to opposite sides of the cell.
- C.
The nuclear membrane disintegrates.
- D.
A cleavage furrow forms.
Correct Answer
A. Sister chromatids are pulled to opposite sides of the cell.Explanation
During Anaphase II of meiosis, sister chromatids are pulled to opposite sides of the cell. This is the stage where the centromeres of each pair of sister chromatids separate, allowing them to be pulled towards opposite poles of the cell by the spindle fibers. This ensures that each resulting daughter cell receives one copy of each chromosome. Homologous chromosomes are separated during Anaphase I, not Anaphase II. The nuclear membrane disintegrates during Prophase I, and a cleavage furrow forms during cytokinesis, which occurs after Anaphase II.Rate this question:
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- 20.
Which of the following could describe either Telophase I or Telophase II?
- A.
A cleavage furrow forms
- B.
The nuclear membrane disintegrates
- C.
Chromosomes are pulled to opposite sides of the cell
- D.
The DNA is replicated
Correct Answer
A. A cleavage furrow formsExplanation
During both Telophase I and Telophase II of meiosis, a cleavage furrow forms. This furrow is a shallow groove that develops in the cell membrane, indicating the beginning of cytokinesis. It marks the eventual separation of the cytoplasm into two daughter cells. Therefore, the formation of a cleavage furrow is a common characteristic of both Telophase I and Telophase II.Rate this question:
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- 21.
Which of the following cells is diploid?
- A.
A sperm cell
- B.
A somatic cell
- C.
A gamete
- D.
An oocyte
Correct Answer
B. A somatic cellExplanation
A somatic cell is diploid because it contains two sets of chromosomes, one from each parent. This makes it different from gametes, such as sperm cells and oocytes, which are haploid and only contain one set of chromosomes. Somatic cells make up the majority of cells in an organism's body and are responsible for carrying out various functions.Rate this question:
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- 22.
In humans, a ___ cell has ___ chromosomes.
- A.
Haploid ... 46
- B.
Haploid ... 23
- C.
Diploid ... 50
- D.
Diploid ... 23
Correct Answer
B. Haploid ... 23Explanation
In humans, a haploid cell has 23 chromosomes. Haploid cells are cells that contain half the number of chromosomes found in diploid cells. In humans, diploid cells have a total of 46 chromosomes, with 23 inherited from each parent. However, haploid cells, such as gametes (sperm and egg cells), contain only one set of chromosomes, which is why they have 23 chromosomes.Rate this question:
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Mar 21, 2023Quiz Edited by
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Apr 01, 2014Quiz Created by
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