Which of the adhering to is NOT a difference between anaphase I and also anaphase II? A) Each chromosome is composed of two chromatids in anaphase I and just one chromatid in anaphase II. B) Anaphase I occurs in a haploid cell while anaphase II occurs in a diploid cell. C) Sister chromatids sepaprice in the time of anaphase II while homologous chromosomes separate throughout anaphase I. D) The cell undergoing anaphase II is genetically various from from what it consisted of while undergoing anaphase I. E) All of these are true statements
It could be said that males are able to provide gametes via more hereditary diversity than females for reproduction. One primary factor would certainly be: A) Males carry out even more genes in sperm than females provide in eggs. B) Crossing over occurs even more often in the development of sperm than in eggs. C) Spermatogenesis in males results in four sensible sperm while oogenesis in females outcomes in only one egg and also 3 frameworks that contain hereditary indevelopment that is lost as soon as they discombine. D) Sperm that contain a recombination of genes are commonly more successful in fertilizing an egg. E) All of these are possible contributors to hereditary diversity.
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C) Spermatogenesis in males outcomes in 4 useful sperm while oogenesis in females outcomes in just one egg and also 3 frameworks that contain genetic indevelopment that is lost as soon as they disincorporate.
The cell developed with fertilization is dubbed a/an A) gamete. B) sperm cell. C) zygote. D) egg cell. E) ovum
If a sperm cell contains 8 chromosomes, it originates from an animal that has actually ______ chromosomes. A) 4 B) 8 C) 12 D) 16 E) 24
The two chromosomes that are members of the same pair are referred to as A) tetrad. B) homologous. C) haploid. D) diploid. E) chromatid.
Another name for a tetrad is a/an A) homologue. B) bivalent. C) öocyte. D) gamete. E) polar body.
If a cell consists of 12 chromosomes at the end of meiosis I, how many type of chromosomes will the daughter cells contain at the end of meiosis II? A) 3 B) 6 C) 12 D) 24 E) 48
Throughout which stage of meiosis does crossing-over occur? A) prophase I of meiosis I B) anaphase I of meiosis II C) telophase I of meiosis I D) prophase II of meiosis II E) anaphase II of meiosis I
Homologous chromosomes are similar in every one of these features EXCEPT: A) equivalent in dimension. B) carry the very same alleles for all traits. C) lug genes for the very same traits. D) equivalent in form and also area of the centromere.
What is the prominence of crossing-over? A) It provides extra hereditary material for the daughter cells. B) It boosts the likelihood that daughter cells contain different hereditary product. C) It produces the proteins that are associated through DNA in chromosomes. D) It boosts chromosome condensation. E) It separates the homologous chromosomes.
The as a whole attribute of meiosis consists of every one of the adhering to EXCEPT A) gamete manufacturing. B) reduction of chromosome number (from 2N to N). C) giving genetic variation in sexually reproducing organisms. D) expansion of the all at once individual.
Sources of genetic variation in a sexually redeveloping population include(s) which of the following? A) crossing over in Prophase I of meiosis B) independent assortment in Metaphase I of meiosis C) fertilization D) All of the options are sources of genetic variation. E) Namong the options are resources of hereditary variation.
To what does the term chiasma refer? A) the procedure of fertilization B) the life cycle of a fungus C) the procedure of crossing-over D) a structure that holds together homologues in the time of crossing-over E) the duration between meiosis I and also meiosis II
Throughout which phase of meiosis are the bivalents arranged alengthy the equator? A) prophase I B) metaphase II C) anaphase II D) prophase II E) metaphase I
At which stage of meiosis is each chromosome written of a solitary chromatid? A) prophase I B) metaphase II C) anaphase II D) prophase II E) metaphase I
Throughout which stage of meiosis does homologue separation occur? A) prophase I B) anaphase I C) telophase I D) prophase II E) anaphase II
Which statement is NOT true about homologues in the time of the occasions of meiosis I? A) Homologous chromosomes pair to create a tetrad. B) Homologous chromosomes sepaprice and go to various daughter cells. C) Each homologue"s centromere splits to create two chromosomes. D) Homologues exadjust hereditary product between non-sister chromatids. E) Homologues communicate with the spindle as if they were one chromosome.
The genus Lacerta is written of a types of lizards that are female and also perform not mate. They undergo "endomitosis" wright here one extra chromosome replication results in a tetraploid cell before meiosis starts. Common female 2n offspring result without fertilization. What change(s) from constant meiosis (in preparation for fertilization) would be required to develop this system? A) The haploid cell commodities of meiosis II fusage. B) Meiosis stops after meiosis I and also does not proceed to meiosis II. C) Cytokinesis does not follow "endomitosis" that results in a tetraploid cell. D) During anaphase II, the sister centromeres fail to separate and also daughter cells will not develop. E) During anaphase II, the daughter chromosomes are non-disjunctive and also are all pulbrought about one daughter cell.
Interkinesis is different from interphase in which way? A) Interkinesis occurs after a cell finishes a nuclear division. B) Interkinesis is the stage that precedes a prophase stage. C) Interphase involves DNA replication and also interkinesis does not. D) Interkinesis deserve to be variable in length.
Which does NOT take place in meiosis? A) 2 daughter cells are created at completion B) four daughter cells are created at completion C) 2 nuclear departments occur D) formation of bivalents E) hereditary recombination
Meiosis occurs throughout every one of the complying with EXCEPT A) gametogenesis. B) oogenesis. C) pangenesis. D) spermatogenesis.
The polar body is A) an additional name for an egg cell. B) a precursor cell that becomes an egg cell. C) a nonfunctional cell made at the very same time as an egg cell. D) the cell produced as soon as fertilization occurs. E) a committed sperm cell
Why perform polar bodies form? A) They nurse the egg as it leaves the follicle. B) This is added chromosomal product representing the X chromosome in each female cell. C) They orient the sperm towards the egg. D) They allow a reduction in chromosomes while preserving all the food for one egg. E) They orient the egg for penetration by the sperm.
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Which of the following is/are true around sexual reproduction? A) It differs from asex-related remanufacturing because it requires 2 cells fmaking use of to come to be one. B) It needs the advancement of frameworks or organs (such as the uterus in humans) which are of no immediate survival advantage to the individual yet are helpful to the species. C) It facilitates adaptations to the outside atmosphere in a much shorter period of time. D) It facilitates adaptations to the internal atmosphere (disease agents, parasites) in a shorter duration of time. E) All of the choices are true.