CHAPTER 13 TEST BIOLOGY

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1) The centromere is an area in which A) chromatids remajor attached to one one more until anaphase. B) metaphase chromosomes come to be aligned at the metaphase plate. C) chromosomes are grouped throughout telophase. D) the nucleus is located before mitosis. E) new spindle microtubules develop at either end.
2) Which of the complying with statements around genes is incorrect? A) Genes correspond to segments of DNA. B) Many type of genes contain the information necessary for cells to synthesize enzymes and various other proteins. C) Throughout fertilization, both the sperm and also the ovum contribute genes to the resulting fertilized egg. D) One gene just is provided in a particular cell kind. E) Genetic distinctions deserve to result from alters in the DNA dubbed mutations.
3) Asex-related reproduction and sexual reproduction differ in all but which of the complying with ways? A) Individuals recreating asexually transmit 100% of their genes to their progeny, whereas people reproducing sexually transmit only 50%. B) Asex-related reproduction produces offspring that are genetically identical to the paleas, whereas sex-related reproduction offers climb to genetically unique offspring. C) Asex-related remanufacturing entails a solitary parent, whereas sex-related remanufacturing involves two. D) Asexual reproduction calls for only mitosis, whereas sex-related reproduction always requires meiosis. E) Asex-related reproduction is made use of only by fungi and also protists, whereas sexual reproduction is utilized only by plants and animals.
4) If a horticulturist reproduction gardenias succeeds in having a single plant through a specifically desirable collection of traits, which of the following would be her the majority of probable and also efficient course to creating a line of such plants? A) Backtrack through her previous experiments to obtain another plant via the same traits. B) Breed this plant with another plant with a lot weaker traits. C) Clone the plant asexually to develop an similar one. D) Force the plant to self-pollinate to acquire an similar one. E) Add nitrogen to the soil of the offspring of this plant so the preferred traits continue.
5) Asexual reproduction results in identical offspring unmuch less which of the following occurs? A) Natural selection B) Cloning C) Crossing over D) Mutation E) Environpsychological readjust
6) The humale genome is minimally consisted of in which of the following? A) Every human cell B) Each huguy chromosome C) The whole DNA of a solitary humale D) The whole huguy populace E) Each human gene
7) A gene"s area alengthy a chromosome is known as which of the following? A) Allele B) Sequence C) Locus D) Variant E) Trait
8) What is a karyotype? A) The collection of unique physical qualities that specify an individual B) The repertoire of all the mutations current within the genome of an individual C) The combination of chromosomes discovered in a gamete D) A device of classifying cell nuclei E) A display screen of every pair of homologous chromosomes within a cell, organized according to size and form
9) At which phase of mitosis are chromosomes generally photographed in the preparation of a karyotype? A) Prophase B) Metaphase C) Anaphase D) Telophase E) Interphase
10) The huguy X and also Y chromosomes A) are both present in eexceptionally somatic cell of males and also females alike. B) are of approximately equal dimension and number of genes. C) are practically totally homologous, despite their different names. D) incorporate genes that determine an individual"s sex. E) encompass only genes that govern sex determination.
11) Which of the complying with is true of a types that has a chromosome variety of 2n = 16? A) The species is diploid via 32 chromosomes per cell. B) The species has 16 sets of chromosomes per cell. C) Each cell has actually 8 homologous pairs. D) Throughout the S phase of the cell cycle tbelow will be 32 sepaprice chromosomes. E) A gamete from this species has 4 chromosomes.
12) Eukaryotic sex-related life cycles display significant variation. Of the adhering to elements, which perform all sex-related life cycles have in common?I. Altercountry of generationsII.MeiosisIII. FertilizationIV. GametesV. Spores A) I, IV, and also V B) I, II, and also IV C) II, III, and IV D) II, IV, and also V E) All of the over
13) Which of these statements is false? A) In humans, each of the 22 maternal autosomes has actually a homologous paternal chromosome. B) In humans, the 2third pair, the sex chromosomes, determines whether the perkid is female (XX) or male (XY). C) Single, haploid (n) sets of chromosomes in ovum and sperm unite throughout fertilization, creating a diploid (2n), single-celled zygote. D) At sex-related maturity, ovaries and testes produce diploid gametes by meiosis. E) Sexual life cycles differ with respect to the loved one timing of meiosis and also fertilization.
14) In pets, meiosis outcomes in gametes, and fertilization results in A) spores. B) gametophytes. C) zygotes. D) sporophytes. E) clones.
15) Referring to a plant sexual life cycle, which of the following terms defines the procedure that leads straight to the formation of gametes? A) Sporophyte meiosis B) Gametophyte mitosis C) Gametophyte meiosis D) Sporophyte mitosis E) Altercountry of generations
16) Which of the adhering to is an instance of alternation of generations? A) A grandparent and also grandson each has dark hair, however the parent has actually blond hair. B) A diploid plant (sporophyte) produces, by meiosis, a spore that provides climb to a multicellular, haploid pollen grain (gametophyte). C) A diploid animal produces gametes by meiosis, and the gametes undergo fertilization to develop a diploid zygote. D) A haploid mushroom produces gametes by mitosis, and the gametes undergo fertilization, which is automatically adhered to by meiosis. E) A diploid cell divides by mitosis to create 2 diploid daughter cells, which then fuse to produce a tetraploid cell.
22) The karyoform of one species of primate has 48 chromosomes. In a particular female, cell division goes awry and also she produces one of her eggs through an extra chromosome (25). The a lot of probable source of this error would certainly be a mistake in which of the following? A) Mitosis in her odiffer B) Metaphase I of one meiotic occasion C) Telophase II of one meiotic event D) Telophase I of one meiotic event E) Either anaphase I or II
23) A given organism has 46 chromosomes in its karyoform. We can therefore conclude which of the following? A) It must be humale. B) It should be a primate. C) It have to be an animal. D) It must be sexually reproducing. E) Its gametes should have actually 23 chromosomes.
24) A triploid cell has three sets of chromosomes. If a cell of a normally diploid species via 42 chromosomes per cell is triploid, this cell would certainly be supposed to have which of the following? A) 63 chromosomes in 31 1/2 pairs B) 63 chromosomes in 21 sets of 3 C) 63 chromosomes, each through three chromatids D) 21 chromosome pairs and 21 distinctive chromosomes
25) A karyoform results from which of the following? A) A natural cellular arrangement of chromosomes in the nucleus B) An inherited capability of chromosomes to ararray themselves C) The ordering of human chromosome imeras D) The cutting and pasting of parts of chromosomes to form the conventional variety E) The separation of homologous chromosomes at metaphase I of meiosis

See more: Sw Science 10 Unit 1 Mitosis Worksheet Answer Key, Sw Science 10 Unit 1

26) After telophase I of meiosis, the chromosomal makeup of each daughter cell is A) diploid, and the chromosomes are each composed of a single chromatid. B) diploid, and also the chromosomes are each composed of 2 chromatids. C) haploid, and the chromosomes are each created of a solitary chromatid. D) haploid, and also the chromosomes are each written of 2 chromatids. E) tetraploid, and the chromosomes are each composed of two chromatids
27) How carry out cells at the completion of meiosis compare with cells that have actually replicated their DNA and also are just around to begin meiosis? A) They have actually twice the amount of cytoplasm and fifty percent the amount of DNA. B) They have actually fifty percent the number of chromosomes and also fifty percent the amount of DNA. C) They have the exact same number of chromosomes and also half the amount of DNA. D) They have actually fifty percent the variety of chromosomes and also one-fourth the amount of DNA. E) They have actually fifty percent the amount of cytoplasm and twice the amount of DNA
28) When does the synaptonemal complex disappear? A) Late prophase of meiosis I B) Throughout fertilization or fusion of gametes C) Early anaphase of meiosis I D) Mid-prophase of meiosis II E) Late metaphase of meiosis II
29) Tetrads of chromosomes are aligned at the equator of the spindle; alignment determines independent assortment. A) I ProphaseB) II Metaphase IC) IV Telophase ID) VII Anaphase IIE) VIII Telophase II
30) Synapsis of homologous pairs occurs; crossing over may take place. A) I ProphaseB) II Metaphase IC) IV Telophase ID) VI Metaphase IIE) VII Anaphase II
31) Centromeres of sister chromatids disjoin and also chromatids sepaprice. A) II Metaphase IB) III Anaphase IC) IV Telophase ID) V Prophase IIE) VII Anaphase II
32) Which of the following happens at the conclusion of meiosis I? A) Homologous chromosomes are separated. B) The chromosome number per cell is conoffered. C) Sister chromatids are separated. D) Four daughter cells are formed. E) The sperm cells elongate to form a head and a tail finish
34) A cell divides to produce two daughter cells that are genetically different. A) The statement is true for mitosis only. B) The statement is true for meiosis I only. C) The statement is true for meiosis II only. D) The statement is true for mitosis and also meiosis I. E)The statement is true for mitosis and also meiosis II.
35) Homologous chromosomes synapse and crossing over occurs. A) The statement is true for mitosis only. B) The statement is true for meiosis I just. C) The statement is true for meiosis II only. D) The statement is true for mitosis and also meiosis I. E) The statement is true for mitosis and meiosis II.
36) Chromatids are separated from each other. A) The statement is true for mitosis just. B) The statement is true for meiosis I just. C) The statement is true for meiosis II only. D) The statement is true for mitosis and also meiosis I. E) The statement is true for mitosis and meiosis II.
37) Independent assortment of chromosomes occurs. A) The statement is true for mitosis only. B) The statement is true for meiosis I just. C) The statement is true for meiosis II only. D) The statement is true for mitosis and also meiosis I. E) The statement is true for mitosis and also meiosis II.
38) You have actually in your possession a microscopic lense slide through meiotic cells on it and also a light microscopic lense. What would certainly you look for if you wanted to determine metaphase I cells on the slide? A) A visible nuclear envelope B) Separated sister chromatids at each pole of the cell C) Tetrads lined up at the center of the cell D) A synaptonemal facility E) A cleavage furrow
45) Which of the following occurs in meiosis but not in mitosis? A) Chromosome replication B) Synapsis of chromosomes C) Production of daughter cells D) Alignment of chromosomes at the equator E) Condensation of chromatin
46) If an organism is diploid and a specific gene uncovered in the organism has 18 well-known alleles (variants), then any given organism of that species can/should have which of the following? A) At many, 2 alleles for that gene B) Up to 18 chromosomes with that gene C) Up to 18 genes for that trait D) A haploid number of 9 chromosomes E) Up to, however not even more than, 18 different traits
47) Whether in the time of mitosis or meiosis, sister chromatids are hosted together by proteins referred to as cohesions. Such molecules must have which of the complying with properties? A) They have to persist throughout the cell cycle. B) They have to be rerelocated prior to meiosis can begin. C) They need to be rerelocated prior to anaphase can occur. D) They need to reaffix to chromosomes throughout G1. E) They must be intact for nuclear envelope reformation.
48) Experiments through cohesions have actually uncovered that A) cohesions are protected from damage throughout meiosis I and II. B) cohesions are cleaved from chromosomes at the centromere prior to anaphase I. C) cohesions are protected from cleavage at the centromere throughout meiosis I. D) a protein cleaves cohesions prior to metaphase I. E) a protein that cleaves cohesions would cause cellular fatality.
49) A tetrad has which of the complying with sets of DNA strands? A) Two single-stranded chromosomes that have synapsed B) Two sets of sister chromatids that have actually synapsed C) Four sets of sister chromatids D) Four sets of distinct chromosomes E) Eight sets of sister chromatids
53) Chiasmata are what we view under a microscope that let us recognize which of the following is occurring? A) Asex-related remanufacturing B) Meiosis II C) Anaphase II D) Crossing over E) Separation of homologs
54) How does the sexual life cycle rise the genetic variation in a species? A) By enabling independent assortment of chromosomes B) By permitting fertilization C) By boosting gene stability D) By conserving chromosomal gene order E) By decreasing mutation frequency
55) For a types through a haploid variety of 23 chromosomes, exactly how many type of various combicountries of maternal and also paternal chromosomes are possible for the gametes? A) 23 B) 46 C) 460 D) 920 E) About 8 million
56) Independent assortment of chromosomes is an outcome of A) the random and independent method in which each pair of homologous chromosomes lines up at the metaphase plate throughout meiosis I. B) the random nature of the fertilization of ova by sperm. C) the random circulation of the sister chromatids to the 2 daughter cells during anaphase II. D) the reasonably tiny level of homology shared by the X and also Y chromosomes. E) All of the above
57) When pairs of homologous chromosomes sepaprice during anaphase I, A) the maternal chromosomes all relocate to the very same daughter cell. B) the sister chromatids remajor attached to one one more. C) recombicountry is not yet finish. D) the synaptonemal complicated is visible under the light microscope.
58) Natural selection and also recombicountry as a result of crossing over in the time of meiosis I are connected in which of the following ways? A) Recombinants are generally selected versus. B) Non-recombinant organisms are generally favored by organic selection if tright here is eco-friendly change. C) Many recombinants reproduce less commonly than carry out non-recombinants. D) Recombinants may have actually combinations of traits that are favored by herbal selection. E) Recombination does not affect organic selection.
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