A) The haploid phase can be larger than the diploid phase. 5) Select the statement which is FALSE. B) Homologous chromosomes separate and go to different daughter cells. C) spermatogenesis. A. independent assortment B. metaphase C. anaphase II D. mitosis, If the diploid number of chromosomes for an organism is 52, what will the haploid number of chromosomes be? Which statement correctly describes meiosis? One main reason would be. C) metaphase I and metaphase A. Interkinesis occurs after a cell finishes a nuclear division. during which stage of meiosis does homologue separation occur? A. gametogenesis. The third way that meiosis generates genetic diversity is through the separation of homologous chromosomes into the gametes. usually an exchange of material between nonhomologous chromosomes. Only one of the four daughter cells becomes a functional gamete in spermatogenesis. Gastrulation is the first major process that occurs during prenatal development. Meiosis occurs during all of the following EXCEPT A) gametogenesis. All of the choices are true about sexual reproduction. in the human male, sperm cells are produced in the..and in the females, the egg cells are produced in the. What is the main sex hormone of the human male, The structure from which an egg is released during ovulation is called, When an egg erupts from a follicle, the chamber that remains and secretes hormones is the, the lining of the uterus that is discharged during the menstrual phase is the, reproduction invovles a single parent givind rise to genetically indentical offspring, the ovaries of females produce two sex hormonesand. A. crossing over B. nuclear envelope dissolves C. chromatin condenses into chromosomes D. centrioles appear in animal cells, During _______________ the homologous chromosome pairs separate in a random fashion leading to genetic diversity among the offspring. When a sperm and an egg join in fertilization, the two haploid sets of chromosomes form a complete diploid set: a new genome. D Interkinesis can be variable in length. C. Familial Down syndrome it can be used to generate new spermatogonia. Meiosis occurs during all of the following EXCEPT A. gametogenesis. B) a precursor cell that becomes an egg cell. A lattice holds the members of a bivalent together in such a way that the RNA of the non-sister chromatids is aligned. It begins around the second week of embryonic development and involves the formation of the three germ layers - the endoderm, mesoderm, and ectoderm - which give rise to all of the body's organs and tissues. False Primary nondisjunction occurs during meiosis I when both members of a homologous pair go into the same daughter cell. B. Interkinesis is the stage that precedes a prophase stage. D. Sister chromatids fail to separate during meiosis I. A. Anaphase II and Anaphase B. Prophase II and Prophase C. Metaphase I and Metaphase D. Telophase I and Telophase. Species X reproduces asexually by fission and species Y reproduces sexually. Which of the following is NOT true concerning mitosis? Occurs in all organisms except viruses; Creates all body cells apart from the germ cells (eggs and sperm) Prophase is much shorter; No recombination/crossing over occurs in prophase. Normal female 2n offspring result without fertilization. D) 24. In human females, when is meiosis II completed? It is nevertheless necessary for two females to court and for one to assume the posture of a male to stimulate the female to produce eggs. species Y should have a better chance of surviving than species X. in human females, when is meiosis 11 completed? Which of the following statements about mitosis is not true? (c) Bargaining. No fertilization can occur, and the eggs develop into female lizards. Oogenesis always involves an equal division of cell contents in the formation of an egg and polar bodies. During _______________ the homologous chromosome pairs separate in a random fashion leading to genetic diversity among the offspring. It is estimated that an average of two or three cross-overs occur per human chromosome. Crossing over is a cellular process that happens during meiosis when chromosomes of the same type are lined up. D) Interkinesis can be variable in length. Meiosis I. Meiosis is preceded by an interphase consisting of the G 1, S, and G 2 phases, which are nearly identical to the phases preceding mitosis. At the end of anaphase I, each chromosome is composed of two chromatids and at the end of anaphase II, sister chromatids have separated, becoming daughter chromosomes B. Anaphase I occurs in a haploid cell while anaphase II occurs in a diploid cell. The desert is relatively uniform and there is little advantage to maintaining variation, but the animal has not been able to completely evolve away from its heritage of sexual reproduction. A. Meiosis produces four haploid daughter cells, includes two nuclear division and the formation of bivalents. Which of the following is/are true about sexual reproduction? Which of the following is not a characteristic of homologous chromosomes? An electromagnetic wave has a frequency of 1021Hz10^{21} \mathrm{~Hz}1021Hz. To what does the term chiasma refer? Select all that apply. B. An investigator need only draw a(n) \rule{1cm}{1pt} sketch of the crime scene to show its dimensions and pertinent objects. D. offspring inherit copies of the same 23 pair of chromosomes from each of their parents but the rate of crossing-over makes them very dissimilar. Which of the following would not contribute to genetic variation? A) In meiosis, daughter cells are haploid. C) providing genetic variation in sexually reproducing organisms. chances of a woman having a child with Down Syndrome decreases with her age. Describe the main differences between anaphase of mitosis and anaphase I in meiosis. True or False, Jacobs Syndrome, XYY, results from nondisjunction during spermatogenesis. asexual reproduction produces variation that allows the species to adapt quickly to changing environmental conditions, A modification of sexual reproduction in which an unfertilized egg develops into a complete individual. B) oogenesis. A) Interkinesis occurs after a cell finishes a nuclear division. The cell formed through fertilization of an egg by a sperm is called a/an A. gamete. B. C) the process of crossing-over False. Which statement is NOT true about homologous chromosomes in meiosis I? [Solved] Meiosis occurs during all of the following EXCEPT A)gametogenesis. Which statement below best describes the difference between mitosis and cytokinesis? c. the cell may have damaged DNA and need to undergo apoptosis. B) structures that hold the chromosomes in alignment on the metaphase plate During metaphase of mitosis the duplicated chromosomes are at the metaphase plate while during metaphase I of meiosis the bivalents are present at the metaphase plate B. c. CH3COOH\text{CH}_{3}\text{COOH}CH3COOH and NaCH3COO\text{NaCH}_{3}\text{COO}NaCH3COO. Both mitosis and meiosis result in daughter cells identical to the parent cells. D. This is probably an asexual organism attempting to mimic sexual reproduction. The G1 phase is the first gap phase. C. It happens in all tissues except the brain and spinal cord. C) it is the most common trisomy in humans. Answer to: What is the key difference between mitosis and meiosis? C) spermatogenesis. Meiosis occurs during all of the following EXCEPT Tags: Question 28 . After Interphase I meiosis I occurs after Interphase I, where proteins are grown in G phase and chromosomes are replicated in S phase. C) species X should have a better chance of surviving than species Y. Extra copies of sex chromosomes are more easily tolerated in humans than extra copies of autosomes. A. D. In mitosis, the daughter cells are genetically identical. B) They carry the same alleles for all traits. What distinguishes paracentric inversions from pericentric inversions? They have the same number of chromosomes in their nucleus. In meiosis, there are four daughter cells. In humans, the haploid cells made in meiosis are sperm and eggs. b. the chromosome is a simple DNA strand without complex proteins and no spindle forms Which of these descriptions is associated with the luteal pahse of the uterine cycle? Sex chromosome aneuploids are better tolerated and have a better chance of producing survivors. D. Homologues exchange genetic material between non-sister chromatids. C) They allow a reduction in chromosomes while preserving most of the cytoplasm for one egg. False. Consider that all other relevant characteristics are similar between these species. a. gametes are the only haploid phase of the human life cycle D. It regularly produces a wider array of adaptations to the internal environment (disease agents, parasites) in a shorter period of time. D) prophase II Normal, because they have a normal amount of genetic material, Pair the disease with its chromosomal abnormality A) 26 48 C. 112 D. 24, Which of the following statements is correct about the chromosomal position during mitosis and meiosis? Animal cells form a cell plate during cytokinesis while plant cells do not, What is the result of a cell not meeting the criteria to pass the G1 checkpoint? All of the following events occur during normal meiosis except _______. The cell formed after fertilization of an egg by a sperm is called a(n). D. They allow a reduction in chromosomes while preserving most of the cytoplasm for one egg. B) In meiosis, there are four daughter cells. Monosomy occurs when an individual has only one of a particular type of chromosome. In the tetrad stage, the number of chromosomes is equal to the number of DNA molecules. Figure 1. monster hunter rise - steam release date; undying court of aerenal; meiosis occurs during all of the following except The process includes two chromosome divisions and produces four haploid, n cells. D. B) in 23% of cases, the sperm contributes the extra chromosome. The polar body is . A. In order to create a diploid organism, the uniting cells must be haploid so as to maintain the constant chromosome number in the baby. B) They use sexual reproduction to produce new offspring. (E) Homologous pairs of chromosomes line up on the metaphase plate in meiosis I. All of the following events occur during normal meiosis except _______. During which stage of meiosis does crossing-over occur? A. the gametophyte can be larger than the diploid generation B. they use sexual reproduction to produce new offspring C. they use meiosis in order to produce the gametes D. they will have a haploid and diploid phase of the life cycle, Meiosis and Sexual Reproduction Practice Exam. The incidence of Down syndrome, also known as trisomy 21, increases with increasing maternal age. Chromosome disorders can be divided . It is only during Metaphase II and Metaphase that the state of the chromosomes is the same. d. All the choice are correct. At the cellular level is the opposite of reproduction since it involves two cells fusing to become one. T/F: Females with only one X chromosome do not develop; this condition is lethal. C. providing genetic variation in sexually reproducing organisms. Meiosis occurs during all of the following EXCEPT A. gametogenesis. It increases the likelihood that daughter cells contain different genetic material. iii. Meiosis occurs during all of the following EXCEPT A. gametogenesis. B. Meiosis fails to proceed to completion. 6. Question 12: An elephant gamete has 28 chromosomes in it. This statement is: - True Which statement is true about the life cycle of plants but not of animals? B) 48 D) after the zygote has formed. d. all of the choices are true B) anaphase I d. all of the choices are correct They may carry different alleles for a trait. The interphase is subdivided into {eq}\rm G_1 {/eq} phase, {eq}\rm S {/eq} phase, and {eq}\rm G_2 {/eq} phase. About 90 percent of a cell's time in the normal cell cycle may be spent in interphase. B) immediately after the sperm penetrates the secondary oocyte A) at ovulation In human females, when is meiosis II completed? All of the following are true for meiosis EXCEPT *. Meiosis I. offspring inherit essentially 50% of their genes from each parent, but two sibling offspring may share with each other from zero to 23 chromosomes in common from each parent, and further variation may occur due to crossing-over. (4) Power of adaptability in diverse habitat. Extra copies of sex chromosomes are more easily tolerated in humans than extra copies of autosomes. D. spermatogenesis. e. only B and C are correct. In preparation for meiosis, a germ cell goes through interphase, during which the entire cell (including the genetic material contained in the nucleus) undergoes replication. d. all of the choices are sources of genetic variation Which of the following serves as the first site of blood formation in the embryo? All of the following are true concerning Down Syndrome EXCEPT A. it is caused by autosomal trisomy 21 B. in 23% of cases, the sperm contributes the extra chromosome C. it is the most common trisomy in humans D. chances of a woman having a child with Down Syndrome decreases with her age, The correct number of chromosomes in a species is known as aneuploidy. E) anaphase II. They are caused by nondisjunction, which occurs when pairs of homologous chromosomes or sister chromatids fail to separate during meiosis. A. deletion B. duplication C. translocation D. aneuploidy. Which is NOT true about daughter cells of mitosis or meiosis? Which of the following represent a buffer system? Interphase involves DNA replication and interkinesis does not. Jacobs syndrome, XYY, results from nondisjunction during spermatogenesis. D) A, B, and C all involve meiosis. 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