Description : Mitotic anaphase differs from metaphase in possessing (a) same number of chromosomes and same number of chromatids (b) half number of chromosomes and half number of chromatids (c) half number of ... and same number of chromatids (d) same number of chromosomes and half number of chromatids.
Last Answer : (d) same number of chromosomes and half number of chromatids.
Description : Anaphase Promoting Complex (APC) is a protein degradation machinery necessary for proper mitosis of animal cell. If APC is defective in a human cell, which of the following is expected to ... will not segregate. (c) Recombination of chromosome arms will occur. (d) Chromosomes will not condense
Last Answer : (b) Chromosomes will not segregate.
Description : Anaphase Promoting Complex (APC) is a protein degradation machinery necessary for proper mitosis of animal cells. If APC is defective in a human cell, which of the following is expected to occur ... will not segregate (3) Recombination of chromosome arms will occur (4) Chromosomes will not condense
Last Answer : (2) Chromosomes will not segregate
Description : What is A cell or organism having half of the diploid chromosome number?
Last Answer : Need answer
Description : $ The two strands of a chromosome are called sister chromatids ! The two sister chromatids get separated during Anaphase.
Last Answer : $ The two strands of a chromosome are called sister chromatids ! The two sister chromatids get separated during ... D. If both As and R are wrong.
Description : Assertion :- In anaphase number of chromosomes get doubled. Durring anaphase each chromosome split simultaneously and two daughter chromatids now refe
Last Answer : Assertion :- In anaphase number of chromosomes get doubled. Durring anaphase each chromosome split ... If both Assertion & Reason are false.
Description : The number of chromatids in a chromosome at anaphase is
Last Answer : The number of chromatids in a chromosome at anaphase is A. One in mitosis, one in meiosis-I and ... mitosis, two in meiosis-I and two in meiosis-II
Description : At anaphase -II of meiosis each chromosome contains:-
Last Answer : At anaphase -II of meiosis each chromosome contains:- A. 4 DNA B. 3- DNA C. 2- DNA D. 1- DNA
Description : What happen to chromosome during anaphase?
Last Answer : what happens to chromosomes during anaphase
Description : When each chromosome gets pulled apart during anaphase of mitosis each half of each chromosome is what?
Last Answer : Feel Free to Answer
Description : In the somatic cell cycle (a) in G1 phase DNA content is double the amount of DNA present in the original cell (b) DNA replication takes place in S phase (c) a short interphase is followed by a long mitotic phase (d) G2 phase follows mitotic phase.
Last Answer : (b) DNA replication takes place in S phase
Description : What is the diploid chromosome number for humans and ensp and ensp and ensp and ensp and ensp?
Last Answer : The human genome contains 23 chromosomes (n=23) so the diploidcells contain, in a healthy person, exactly 46 chromosomes(2n=46).
Description : Gametic chromosome individual is known as — a. Diploid b. Haploid c. Polyploid d. Troploid
Last Answer : b. Haploid
Description : A stage in cell division is shown in the figure. Select the answer which gives correct identification of the stage with its characteristics. (a) Cytokinesis Cell plate formed, mitochondria ... reforms. (d) Late anaphase Chromosomes move away from equatorial plate, Golgi complex not present.
Last Answer : (c) Telophase Nuclear envelope reforms,Golgi complex reforms.
Description : A fruit fly is heterozygous for sex-linked genes, when mated with normal female fruit fly, the males specific chromosome will enter egg cell in the proportion (a) 3 : 1 (b) 7 : 1 (c) 1 : 1 (d) 2 : 1.
Last Answer : (c) 1 : 1
Description : 2. A human cell containing 22 autosomes and a Y chromosome is probably a a) somatic cell of male b) sperm cell c) somatic cell of female d) unfertilized egg cell
Last Answer : b) sperm cell
Description : In a species of corn the diploid number of chromosomes is 20. what would be the number of chromosomes found in each of the normal egg cells produced by this species?
Description : Apomictic embryos in Citrus arise from (a) synergids (b) maternal sporophytic tissue in ovule (c) antipodal cells (d) diploid egg.
Last Answer : (b) maternal sporophytic tissue in ovule
Description : $ Colchicine is a chemical which can arrest cell division at metaphase ! Colchicine is also called mitotic tympanic cavity of the ear.
Last Answer : $ Colchicine is a chemical which can arrest cell division at metaphase ! Colchicine is also called mitotic ... D. If both As and R are wrong.
Description : A cell has 46 chromosomes at each pole in mitotic telophase. In tis division the number of chromatids at the metaphase was :-
Last Answer : A cell has 46 chromosomes at each pole in mitotic telophase. In tis division the number of chromatids at the metaphase was :- A. 23 B. 46 C. 92 D. 69
Description : A cell that is entering the mitotic phase (M-phase) of cell cycle is :-
Last Answer : A cell that is entering the mitotic phase (M-phase) of cell cycle is :- A. ... chromosomes D. always diploid and with unduplicated chromosomes
Description : In mammalian cell cycle, synthesis of DNA occurs during (A) S phase (B) G1 phase (C) Mitotic Phase (D) G2 phase
Last Answer : Answer : A
Description : In grasses what happens in microspore mother cell for the formation of mature pollen grains? (a) One meiotic and two mitotic divisions (b) One meiotic and one mitotic divisions (c) One meiotic division (d) One mitotic division
Last Answer : (b) One meiotic and one mitotic divisions
Description : Which of the following structures will not be common to mitotic cell of a higher plant? (a) Centriole (b) Spindle fibre (c) Cell plate (d) Centromere
Last Answer : (a) Centriole
Description : How many mitotic divisions are needed for a single cell to make 128 cells? (a) 28 (b) 32 (c) 7 (d) 14
Last Answer : (c) 7
Description : During the final stage of cell division, the mitotic apparatus disappears, the chromosomes become attenuated, the centrioles duplicate and split, the nuclear membrane becomes reconstituted and the nucleolus reappears. This ... as: a) prophase (pron: prO-phase) b) metaphase c) anaphase d) telophase
Last Answer : ANSWER: D -- Telophase
Description : What would be the ratio of chromosome number between an egg and its zygote? How is the sperm genetically different from the egg? -Biology
Last Answer : The ratio of chromosome number between egg· and its zygote is 1 : 2. An egg is a female gamete, it has haploid number of chromosomes. ... Sperms and eggs are genetically different in terms ... chromosome. The sperm contain either X or Y-chromosome whereas an egg will always have an X-chromosome.
Description : What are the normal chromosome numbers of a sperm egg and zygote respectively?
Last Answer : monoploid, monoploid and diploid
Description : Cri-du-chat syndrome in humans is caused by the (a) trisomy of 21st chromosome (b) fertilisation of an XX egg by a normal Y-bearing sperm (c) loss of half of the short arm of chromosome 5 (d) loss of half of the long arm of chromosome 5.
Last Answer : (c) loss of half of the short arm of chromosome 5
Description : In Drosophila, the sex is determined by (a) the ratio of number of X-chromosome to the sets of autosomes (b) X and Y chromosomes (c) the ratio of pairs of X-chromosomes to the pairs of autosomes (d) whether the egg is fertilized or develops parthenogenetically.
Last Answer : (c) the ratio of pairs of X-chromosomes to the pairs of autosomes
Description : . Select the incorrect statement. (a) Human males have one of their sex-chromosome much shorter than other. (b) Male fruit fly is heterogametic. (c) In male grasshoppers, 50% of sperms have no sex-chromosome. (d) In domesticated fowls, sex of progeny depends on the type of sperm rather than egg.
Last Answer : (d) In domesticated fowls, sex of progeny depends on the type of sperm rather than egg.
Description : Freshly released human egg has (a) one Y-chromosome (b) one X-chromosome (c) two X-chromosome (d) one X-chromosome and one Y-chromosome.
Last Answer : (b) one X-chromosome
Description : In animal cell xhich structure is thougth to produce the spindle fibres that help separate the sister chromatids during anaphase?
Last Answer : What is the answer ?
Description : A cell cycle consists of (a) Mitosis and meiosis (b) GI, the Sphase, and G2 (c) Prophase, metaphase, anaphase and telophase (d) Interphase and mitosis
Last Answer : Ans:(d)
Description : The period of cell division when the nuclear envelop and nucleolus totally disappear is called a. Prophase b. Metaphase c. anaphase d. telophase
Last Answer : Metaphase
Description : The period between active cell divisions in called a. anaphase b. metaphase c. interphase d. telephase
Last Answer : interphase
Description : During cell division in apical meristem, the nuclear membrane appears in (a) telophase (b) cytokinesis (c) metaphase (d) anaphase.
Last Answer : (a) telophase
Description : Which stages of cell division do the following figures A and B represent respectively? Fig. A Fig. B (a) Metaphase Telophase (b) Telophase Metaphase (c) Late anaphase Prophase (d) Prophase Anaphase
Last Answer : (c) Late anaphase Prophase
Description : Select the correct option with respect to mitosis. (a) Chromatids separate but remain in the centre of the cell in anaphase. (b) Chromatids start moving towards opposite poles in telophase. (c ... . (d) Chromosomes move to the spindle equator and get aligned along equatorial plate in metaphase.
Last Answer : (d) Chromosomes move to the spindle equator and get aligned along equatorial plate in metaphase.
Description : In cell division, the phase following the metaphas is known as: a) prophase b) anaphase c) telophase d) extophase
Last Answer : ANSWER: B -- Anaphase
Description : Which type of chromosome is present in the prophase of cell cycle?
Last Answer : Which type of chromosome is present in the prophase of cell cycle? A. 2 chromatid B. 1 chromatid C. 4 chromatid D. 8 chromatid
Description : what is difference between mitotic and meiotic interphase ? -Biology
Last Answer : answer:
Description : The mitotic division starts as the zygioge moves through the of the oviduct called cleavage.
Last Answer : The mitotic division starts as the zygioge moves through the of the oviduct called cleavage. A. Ampulla B. Isthmus C. Fimbriae D. Infiundibulum
Description : When is DNA copied in the mitotic phase?
Description : Cleavage divisions differ from normal mitotic divisions in that: (a) There is no nuclear division during cleavage (b) There is no division of cytoplasm during cleavage (c) The division of cytoplasm follows nuclear division (d) There is no period of growth in between divisions
Description : Megaspores are produced from the megaspore mother cells after (a) mitotic division (b) formation of thick wall (c) differentiation (d) meiotic division.
Last Answer : d) meiotic division.
Description : Which is the most common type of embryo sac in angiosperms ? (a) Tetrasporic with one mitotic stage of divisions (b) Monosporic with three sequential mitotic divisions (c) Monosporic with two sequential mitotic divisions (d) Bisporic with two sequential mitotic divisions
Last Answer : (b) Monosporic with three sequential mitotic divisions
Description : Offsets are produced by (a) meiotic divisions (b) mitotic divisions (c) parthenocarpy (d) parthenogenesis
Last Answer : b) mitotic divisions
Description : Mitotic spindle is mainly composed of which protein? (a) Actin (b) Myosin (c) Actomyosin (d) Myoglobin
Last Answer : c) Actomyosin