i. Initiation of condensation of chromosomal material
b. Interphase
ii. Nuclear envelops assembles around the chromosomes clusters
c. Telophase
iii. Chromosomes arranged at equatorial plate
d. Prophase
iv. The period between two cell division
1 a-i, b-ii, c-iii, d-iv
2 a-iv, b-i, c-ii, d- iii
3 a-iv, b-iii, c-i, d-ii
4 a- iii, b-iv, c-ii, d-i
Explanation:
- Metaphase - Chromosomes arranged at equatorial plate - Interphase - The period between two cell division - Telophase - Nuclear envelops assembles around the chromosomes clusters - Prophase - Initiation of condensation of chromosomal material
NCERT - I - 122
4 RBTS PAPER
163918
In which among the following mitosis division occurs in haploid cells :
1 Female honey bee
2 Some social insects
3 Some lower plants
4 Both (b.) and (c.)
Explanation:
Mitosis or the equational division is usually restricted to the diploid cells only. However, in some lower plants and in some social insects haploid cells also divide by mitosis.
NCERT - I - 125
4 RBTS PAPER
163919
A cell organelle \(X\) is divided into two types on the basis of cell organelle \(Y\) that help in the protein synthesis. Identify \(X\) and \(Y\) respectively :
1 E. R and Ribosome
2 Ribosome and E.R
3 E.R and mitochondria
4 Mitochondria and ribosome
Explanation:
The ER often shows ribosomes attached to their outer surface. The endoplasmic reticulun bearing ribosomes on their surface is called rough endoplasmic reticulum (RER). In the absence of ribosomes they appear smooth and are called smooth endoplasmic reticulum (SER).
NCERT - I - 95
4 RBTS PAPER
163920
Which of the following structure play a role in motility of bacteria :
1 Fimbriae and Pili
2 Flagella
3 Mesosome
4 1 and 2 both
Explanation:
Bacterial cells may be motile or non-motile. If motile, they have thin filamentous extensions from their cell wall called flagella. Besides flagella, Pili and Fimbriae are also surface structures of the bacteria but do not play a role in motility.
i. Initiation of condensation of chromosomal material
b. Interphase
ii. Nuclear envelops assembles around the chromosomes clusters
c. Telophase
iii. Chromosomes arranged at equatorial plate
d. Prophase
iv. The period between two cell division
1 a-i, b-ii, c-iii, d-iv
2 a-iv, b-i, c-ii, d- iii
3 a-iv, b-iii, c-i, d-ii
4 a- iii, b-iv, c-ii, d-i
Explanation:
- Metaphase - Chromosomes arranged at equatorial plate - Interphase - The period between two cell division - Telophase - Nuclear envelops assembles around the chromosomes clusters - Prophase - Initiation of condensation of chromosomal material
NCERT - I - 122
4 RBTS PAPER
163918
In which among the following mitosis division occurs in haploid cells :
1 Female honey bee
2 Some social insects
3 Some lower plants
4 Both (b.) and (c.)
Explanation:
Mitosis or the equational division is usually restricted to the diploid cells only. However, in some lower plants and in some social insects haploid cells also divide by mitosis.
NCERT - I - 125
4 RBTS PAPER
163919
A cell organelle \(X\) is divided into two types on the basis of cell organelle \(Y\) that help in the protein synthesis. Identify \(X\) and \(Y\) respectively :
1 E. R and Ribosome
2 Ribosome and E.R
3 E.R and mitochondria
4 Mitochondria and ribosome
Explanation:
The ER often shows ribosomes attached to their outer surface. The endoplasmic reticulun bearing ribosomes on their surface is called rough endoplasmic reticulum (RER). In the absence of ribosomes they appear smooth and are called smooth endoplasmic reticulum (SER).
NCERT - I - 95
4 RBTS PAPER
163920
Which of the following structure play a role in motility of bacteria :
1 Fimbriae and Pili
2 Flagella
3 Mesosome
4 1 and 2 both
Explanation:
Bacterial cells may be motile or non-motile. If motile, they have thin filamentous extensions from their cell wall called flagella. Besides flagella, Pili and Fimbriae are also surface structures of the bacteria but do not play a role in motility.
i. Initiation of condensation of chromosomal material
b. Interphase
ii. Nuclear envelops assembles around the chromosomes clusters
c. Telophase
iii. Chromosomes arranged at equatorial plate
d. Prophase
iv. The period between two cell division
1 a-i, b-ii, c-iii, d-iv
2 a-iv, b-i, c-ii, d- iii
3 a-iv, b-iii, c-i, d-ii
4 a- iii, b-iv, c-ii, d-i
Explanation:
- Metaphase - Chromosomes arranged at equatorial plate - Interphase - The period between two cell division - Telophase - Nuclear envelops assembles around the chromosomes clusters - Prophase - Initiation of condensation of chromosomal material
NCERT - I - 122
4 RBTS PAPER
163918
In which among the following mitosis division occurs in haploid cells :
1 Female honey bee
2 Some social insects
3 Some lower plants
4 Both (b.) and (c.)
Explanation:
Mitosis or the equational division is usually restricted to the diploid cells only. However, in some lower plants and in some social insects haploid cells also divide by mitosis.
NCERT - I - 125
4 RBTS PAPER
163919
A cell organelle \(X\) is divided into two types on the basis of cell organelle \(Y\) that help in the protein synthesis. Identify \(X\) and \(Y\) respectively :
1 E. R and Ribosome
2 Ribosome and E.R
3 E.R and mitochondria
4 Mitochondria and ribosome
Explanation:
The ER often shows ribosomes attached to their outer surface. The endoplasmic reticulun bearing ribosomes on their surface is called rough endoplasmic reticulum (RER). In the absence of ribosomes they appear smooth and are called smooth endoplasmic reticulum (SER).
NCERT - I - 95
4 RBTS PAPER
163920
Which of the following structure play a role in motility of bacteria :
1 Fimbriae and Pili
2 Flagella
3 Mesosome
4 1 and 2 both
Explanation:
Bacterial cells may be motile or non-motile. If motile, they have thin filamentous extensions from their cell wall called flagella. Besides flagella, Pili and Fimbriae are also surface structures of the bacteria but do not play a role in motility.
i. Initiation of condensation of chromosomal material
b. Interphase
ii. Nuclear envelops assembles around the chromosomes clusters
c. Telophase
iii. Chromosomes arranged at equatorial plate
d. Prophase
iv. The period between two cell division
1 a-i, b-ii, c-iii, d-iv
2 a-iv, b-i, c-ii, d- iii
3 a-iv, b-iii, c-i, d-ii
4 a- iii, b-iv, c-ii, d-i
Explanation:
- Metaphase - Chromosomes arranged at equatorial plate - Interphase - The period between two cell division - Telophase - Nuclear envelops assembles around the chromosomes clusters - Prophase - Initiation of condensation of chromosomal material
NCERT - I - 122
4 RBTS PAPER
163918
In which among the following mitosis division occurs in haploid cells :
1 Female honey bee
2 Some social insects
3 Some lower plants
4 Both (b.) and (c.)
Explanation:
Mitosis or the equational division is usually restricted to the diploid cells only. However, in some lower plants and in some social insects haploid cells also divide by mitosis.
NCERT - I - 125
4 RBTS PAPER
163919
A cell organelle \(X\) is divided into two types on the basis of cell organelle \(Y\) that help in the protein synthesis. Identify \(X\) and \(Y\) respectively :
1 E. R and Ribosome
2 Ribosome and E.R
3 E.R and mitochondria
4 Mitochondria and ribosome
Explanation:
The ER often shows ribosomes attached to their outer surface. The endoplasmic reticulun bearing ribosomes on their surface is called rough endoplasmic reticulum (RER). In the absence of ribosomes they appear smooth and are called smooth endoplasmic reticulum (SER).
NCERT - I - 95
4 RBTS PAPER
163920
Which of the following structure play a role in motility of bacteria :
1 Fimbriae and Pili
2 Flagella
3 Mesosome
4 1 and 2 both
Explanation:
Bacterial cells may be motile or non-motile. If motile, they have thin filamentous extensions from their cell wall called flagella. Besides flagella, Pili and Fimbriae are also surface structures of the bacteria but do not play a role in motility.
