Biology Chapter No. 7 CELL CYCLE 2nd Year Online MCQs

Mongolism is also known as

When chromosomes reach to the poles, the phase starts is:

The main significance of mitosis is that:

Synapsis occurs during

Karyokinesis involves division of Nucleus and Cytokinesis refers to:

Duplication of Nuclear material in the cell initiates the phase:

Post mitotic cell can exis the cell cycle during phase

Unequal separation of chromosomes is called

The centrioles lie within the:

The microtubule is composed of traces of RNA and protein called:

Chromosomes can be counted at:

The significance of mitosis is that it can:

The Turner syndrome is due to:

Chiasma are most appropriately observed in meiosis during:

For the formation of fragmoplast, the vesicles originate from:

The sex chromosomes of the person affected with Klinefelter syndrome is:

The spindle fibers are composed of traces of RNA 8, a protein called:

The kinetochore fibres of spindle attach to chromosome at region

Pairing of homologous chromosomes for tetrad formation starts at

Chromosomal doubling Occurs in

Nerve cells and eye lens cells remaining stage for life time

The spread of tumor cells and establishment of secondary area of growth is known as

In prophase, the chromosomes condense & become shorter & thicker:

The Syndrome in which individual has short stature, webbed neck, with out ovaries and complete absence of germ cells is

Phragmoplast is formed by vesicles originated from

The difference in the division of a plant cell and animal cell is:

Cell cycle is:

Which tumor is delocalized or has branches other than site of origin

Chromatin network is visible during

The paired chromosomes repel each other and begin to separate in

Bivalents or Tetrads are formed in

The period of cell cycle between two consecutive divisions is termed as:

In which phase of mitosis the chromatids of chromosomes separates from each other

Decision for division occurs in a cell at:

Crossing over occurs during

Each chromosome when visible consists of two unseparated replicas known as:

Which of the following is true?

In which stage of prophase-I, crossing over occurs:

The microtubules of mitotic apparatus are composed of protein tubulin and traces of:

The syndrome having trisomy of chromosome number 18 is

Protein sontlal for chromatin formation:

The reduction division is also called:

G1 (Gap I) is the period of:

Meiosis & Mitosis are found in:

Amitotic divisions are usually found in:

In human cell, average cell cycle is about:

Full cell cycle in yeast cells has length of:

Synapsis takes place in

Cancer occurs due to error in

In non-disjunction chromosomes fail to segregate during

Which one sub-stage of prophase-I of meioses-I lasts for days, weeks or even years?

Down's syndrome in human beings is due to:

Molosls is a:

Which of the following Is the longest phase In cell division?

Crossing over indicates that chromosomes are:

In the case of human cell, average cell cycle is about

Which of the following is not a divisional stage?

The period of life cycle of cell between two consecutive divisions is termed as

Special type of cell division in which the number of chromosomes in daughter cells is reduced to half as compared to parent cell is called as:

Karyokinesis involves division of

The phragmoplast is organized:

The chromosomes became visible, shorter and thick in

The pairing of homologous chromosomes is completed in

Prognmmed and organized process of cell death is also called

Cell grows about twice its size during the phase:

During cell division the nuclear division is called

Post Mitotic Cell can exit the Cell Cycle during

Cancer is caused mainly by mutations in:

The microtubules which originate from the centrioles during mitosis in animal cell give rise to:

Meiosis generally takes place in plants during formation of

Mental retardation is one of the most important characteristic of the human individuals affected with:

Prolonged prophase is characteristic of:

The plane of new wall formation in a dividing cell is determined by:

The death of cell due to tissue damage is called

The sequence in the cell cycle is:

Cytoplasm becomes more viscous during:

The vesicle forming phragmoplast originate during

What are the significant happenings of meiosis

Chromosomes appear inside the nucleus at the time of

The cell death due to tissue damage is called

The number of sets of microtubules originate from each pair of centriole is

Cancer is caused mainly by mutation in

Microtubules are composed of

It is the period of extensive metabolic activity:

The cell death due to tissue damage is called

Length of cell cycle in yeast cells is:

The pairing of homologous chromosomes is completed in:

Cell Death due to tissue damage is called

A female lacking ovaries and germ cells is probably affected with

Inter phase period can be divided into

Pairing of homologous chromosomes is called as

Apoptosis is

How many times mitotic divisions will take place to produce 512 cells from a single parent cell

One the following is not included in karyokinesis:

Tumors non transferable to other parts are:

The linear arrangement of genes is evidenced in:

The tumor which is localized and not transferred to other body parts