Description : C. Fulhrott made an important discovery in evolution and he discoved :
Last Answer : C. Fulhrott made an important discovery in evolution and he discoved : A. Neanerthal man B. ... . Classification of man D. Characters of modern apes
Description : What is the element A new element was discoved in 1898?
Last Answer : What is the answer ?
Description : Assertion :- Morphology of chromosomes is most studied during metaphase of cell division. Reason :- Complete disintegration of nuclear envelope marks
Last Answer : Assertion :- Morphology of chromosomes is most studied during metaphase of cell division. Reason :- ... D. If both Assertion & Reason are false.
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 : At what stage of division does the number of chromosomes in the offspring cell become half of the number of chromosomes in the mother cell ?
Last Answer : The number of chromosomes in the offspring cell formed during the division of miosis-1 is half of the number of chromosomes in the mother cell.
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 : In which stage of cell division, number of chromosomes best counted:-
Last Answer : In which stage of cell division, number of chromosomes best counted:- A. Prophase B. Metaphase C. Telophase D. Interphase
Description : Why does chromatin need to condense into chromosomes before cell division?
Last Answer : Need answer
Description : What would happen to the number of chromosomes in each cell if copies of the chromosomes were not made before cell division?
Description : Mitosis is a type of cell division in which - (1) The chromosomes maintain their original number (2) The chromosome number is reduced to half (3) The Chromosome number is doubled (4) The chromosome number is reduced to one fourth
Last Answer : (3) The Chromosome number is doubled
Description : When paternal and maternal chromosomes change their materials with each other in cell division this event is called (a) bivalent-forming (b) dyad-forming (c) synapsis (d) crossing-over.
Last Answer : (d) crossing-over.
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 : Name the type of cell division in which the two resulting cells carry only half the original number of chromosomes.
Last Answer : ANSWER: MEIOSIS (pron: my-o-sis)
Description : A scientist makes an image of all of a person's chromosomes what technique is she using?
Last Answer : Karyotyping. Apex
Description : At what stage of mitosis division do the chromosomes become the shortest and thickest ?
Last Answer : In the metaphase stage of mitosis division, the chromosomes become the shortest and thickest.
Description : Assertion : Meiosis is also known as reduction division. Reason : Meiosis reduces the number of chromosomes in daughter cells.
Last Answer : Assertion : Meiosis is also known as reduction division. Reason : Meiosis reduces the number of ... D. If both Assertion & Reason are false.
Description : How one division of the nucleus a new spindle forms around each group of chromosomes?
Description : In meios-I, the Centro mere undergoes: (a) Division between anaphase and Interphase (b) Division between prophase and metaphase (c) Division but the daughter chromosomes do not separate (d) No division
Last Answer : Ans. ((d))
Description : Meiosis I is reductional division. Meiosis II is equational division due to (a) pairing of homologous chromosomes (b) crossing over (c) separation of chromatids (d) disjunction of homologous chromosomes.
Last Answer : (c) separation of chromatids
Description : Bacteria lack alternation of generation because there is (a) neither syngamy nor reduction division (b) distinct chromosomes are absent (c) no conjugation (d) no exchange of genetic materia
Last Answer : (a) neither syngamy nor reduction division
Description : A cell examined during prophase of cell cycle contained 100 units of DNA and 50 chromosomes. What would be the number of DNA and chromosome in anaphas
Last Answer : A cell examined during prophase of cell cycle contained 100 units of DNA and 50 chromosomes. What ... & 100 chromosomes D. 50 DNA & 25 chromosomes
Description : When during the cell cycle do chromosomes first become visible?
Description : why is it important for chromosomes to line up in the middle of the cell during mitosis?
Last Answer : If the chromosomes don't line up then they wont get pulled in the rite direction. I studied mitosis, and its way ro much to rember
Description : Which one of the following precedes reformation of the nuclear envelope during M phase of the cell cycle? (a) Decondensation from chromosomes and reassembly of the nuclear lamina (b) ... and formation of the phragmoplast (d) Formation of the contractile ring and transcription from chromosomes
Last Answer : (c) Formation of the contractile ring and formation of the phragmoplast
Description : During Miosis Cell Division, How Many Steps Does the Genital Mother Cell Divide ?
Last Answer : During meiosis cell division, the germ cells divide into two successive stages.
Description : Cleavage is a succession of rapid cell division that follow fertilisation . During cleavage.
Last Answer : Cleavage is a succession of rapid cell division that follow fertilisation . During cleavage ... increases nor decreases but forms blasmtomeres.
Description : Which cell division is found during cleavage ?
Last Answer : Which cell division is found during cleavage ? A. Amitosis B. Mitosis C. Closed mitosis D. Meiosis
Description : During cell division, spindle fibers attach to which part of chromosome :-
Last Answer : During cell division, spindle fibers attach to which part of chromosome :- A. Primary constriction B. Sec. Constriction C. Chromomere D. Chromatid
Description : What happens to the nucleus of a cell during cellular division?
Last Answer : The nucleus undergoes mitosis.
Description : What happens during peparation for cell division?
Last Answer : It gathers nutrients to make a copy of its DNA
Description : The generation time is a. The time required for the cell to divide b. The total division of the cell during its life time c. The total no.of cells formed d. None of these
Last Answer : Ans: C
Description : What is the cell division during the first stage of the embryonic development called ?
Last Answer : How is this stage characterized? The cell division in the first stage of the embryonic developments is called cleavage, or segmentation. In this stage, mitosis occurs from the zygote forming the new embryo.
Description : The following cell division occurs during gametogenesis a. Mitosis b. Meiosis c. Both d. None of them
Last Answer : Both
Description : Which one of the following statements about the particular entity is true ? (a) Centromere is found in animal cells, which produces aster during cell division. (b) The gene for producing insulin is ... cell. (c) Nucleosome is formed of nucleotides. (d) DNA consists of core of eight histones.
Last Answer : (b) The gene for producing insulin is present in every body cell.
Description : The given figure is the representation of a certain event at a particular stage of a type of cell division. Which is this stage? (a) Prophase I during meiosis (b) Prophase II during meiosis (c) Prophase of mitosis (d) Both prophase and metaphase of mitosis
Last Answer : (a) Prophase I during meiosis
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 : During mitosis, the eukaryotic cell nucleus splits in two, followed by division of the parent cell into two daughter cells. Mitosis progresses through five separate morphologically distinct phases. Name, in order, these five phases of mitosis.
Last Answer : Prophase, prometaphase, metaphase, anaphase, and telophase.
Description : During microsporogenesis, successive type of cell division is found in
Last Answer : During microsporogenesis, successive type of cell division is found in – Monocots
Description : (a) If a normal human cell has 46 chromosomes, how many chromosomes will be there in a human: (i) Sperm (ii) Zygote (b) Name an animal in which individuals can change sex. What does this indicate? -Science
Last Answer : (a) A normal human being has 46 chromosomes in which 23 chromosomes come from males and 23 chromosomes come from female. (i) Sperms coming from males have 23 chromosomes. (ii) Zygote forming in ... chromosomes in all. (b) Snail. This indicates that sex is not determined genetically in such animals.
Description : The human cell contains (a) 44 chromosomes (b) 48 chromosomes (c) 46 chromosomes (d) 23 chromosomes
Last Answer : Ans:(c)
Description : In which type of cell divisions does crossing over of chromosomes takes place? -Do You Know?
Last Answer : answer:
Description : Which cell contains only DNA on chromosomes ?
Last Answer : : Chromosome DNA contains only stem cells.
Description : How many chromosomes are there in each cell of human body ?
Last Answer : Each cell of the human body has 23 pairs or 46 chromosomes.
Last Answer : : The nucleus contains 2n chromosomes.
Last Answer : There are 46 chromosomes in each human body cell.
Description : $ DNA replication in a bacterial cell is bidirectional. ! A chromosomes with primary constriction is called "SAT" chromosomes.
Last Answer : $ DNA replication in a bacterial cell is bidirectional. ! A chromosomes with primary constriction is called "SAT ... D. If both As and R are wrong.
Description : If the cell had diploid or 2n number of chromosomes at `G_(1)`, after S phase the number of chromosomes in the cell is ?
Last Answer : If the cell had diploid or 2n number of chromosomes at `G_(1)`, after S phase the number of chromosomes in the cell is ? A. 2 n B. 4 n C. n D. 3n
Description : When synapsis is complete all along the chromosomes, the cell is said to have entered a stage called
Last Answer : When synapsis is complete all along the chromosomes, the cell is said to have entered a stage ... . Zygotene B. Pachytene C. Diplotene D. Diakinesis
Description : If a normal human cell has 46 chromosomes how many chromosomes will its daughter cell have?