Home
Class 12
BIOLOGY
Pick up the correct statement : (a) Sy...

Pick up the correct statement :
(a) Synapsis of homologous chromosomes occurs during prophase I
(b) Division of centromeres takes place during anaphase I
`(c)`Spindle fibres disappear completely in telophase of mitosis
(d) Nucleoli mey reappear in telophase I

A

a only

B

c only

C

a and b only

D

a, c and d only

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • CELL CYCLE (CELL DIVISION)

    DINESH PUBLICATION|Exercise CHECK YOUR GRASP|18 Videos

  • CELL CYCLE (CELL DIVISION)

    DINESH PUBLICATION|Exercise BRAIN TEASERS-III|85 Videos

  • CELL CYCLE (CELL DIVISION)

    DINESH PUBLICATION|Exercise BRAIN TEASERS-III|85 Videos

  • BIOLOGICAL CLASSIFICATION

    DINESH PUBLICATION|Exercise CYC|11 Videos

  • CHEMICAL COORDINATION AND REGULATION

    DINESH PUBLICATION|Exercise Brain Teasers-V|114 Videos

Similar Questions

Explore conceptually related problems

Pick out the correct statements. (a)Mitosis takes place in the somatic cells and the meiosis takes place in the germ cells. (b)During mitosis, the DNA replicates once for one cell division and in meiosis, the DNA replicates twice for two cell division. (c)mitosis and meiosis occur both in sexually and asexually reproducing organisms

Pick out the correct statements (A) Mitosis takes place in the somatic cells and meiosis takes place in the germ cells (B) During mitosis, the DNA replicates once for one cell division and in meiosis the DNA replicates twice for two cell divison (C) Mitosis and meiosis occur both in sexually and asexually reproducing organisms

Answer the following questions regarding the events carried out in the labelled parts of the ab ove given diagram. (1) DNA synthesis occurs in (2) Condenstaion of chromosomal material takes place in (3) Attachement of spindle fibres to kinetochores of chromosomes during (4) Initiation of the assembly of mitotic spindle during (5). Splitting of centromere and separation of chromatids in (6) Movement of chromatids to opposite poles during (7) Reformation of nucleolus, Golgi complex and ER occurs in (8) Alignment of chromosomes along metaphase plate during (9) During of cytoplasm during (10) Preparation of cell division takes place during.

fill in the blanks from the followin g word:Bivalent,synapsis,tetrad,dyad,non-sister chromatids, sister chromatids,disjuction,chiasmata,anneaking. (a)The pairing of homologous chromosoms during zygotene stage of prophase of meiosis-I is termed___ (b)The two visible chromatids of a chromosome during pachytene of meiosis-I is termed___ (c)A group of four homologous chromatids (two dyads)is termed as____ (d)The two chromatids of two homologous chromosomes(bivalent)are termed as____ (e)The separation of homologous chromosomes during diplotene stage is called____

Read the following statements and select the correct option stating which ones are true (T) and which ones are false (F) in metaphase I spindle fibre attaches to homologus chromosome white in metaphase II attaches to chromatids. Chromosome completely decondenese in telophase I. Blvalent is fromed at leptotene stage level become clearly visible in zygotene stage Diakinesis represents transition to metaphase I.

Pick up the correct statement: (A) - I effect stabilizes carbocation (B) +I effect stabilizes carbanion (C) +I effect stabilizes carbocation (D) -I effect destabilizes carbanion