During cell growth DNA synthesis takes place in
During cell growth, DNA synthesis takes place in Options (a) G1 phase (b) M phase (c) S phase (d) G2 phase Correct Answer: S phase Explanation: DNA replication occurs in S ā phase of cell […]
Cell Structure and Functions
DNA replication in bacteria occurs
DNA replication in bacteria occurs Options (a) Just before transcription (b) During S phase (c) Within nuleolus (d) Prior to fission Correct Answer: Prior to fission Explanation: DNA replication in bacteria occurs prior to fission. […]
Concanavalin A is
Concanavalin A is Options (a) An essential oil (b) A lectin (c) A pigment (d) An alkaloid Correct Answer: A lectin Explanation: Concanavalin A is a secondary metabolite e.g is lectin, it has the property […]
Cells in G phase
Cells in Gā phase: Options (a) Enter the cell cycle (b) Suspend the cell cycle (c) Terminate the cell cycle (d) Exit the cell cycle Correct Answer: Exit the cell cycle Explanation: Cells in Gā […]
Anaphase Promoting ComplexAPC is a protein degradation machinery necessary
Anaphase Promoting Complex(APC) is a protein degradation machinery necessary for proper mitosis of animal cells. If APC us defective in a human cell, which of the following is expected to occur? Options (a) Recombination of […]
Two cells are connected with the help of
Two cells are connected with the help of Options (a) plasmodesmata (b) plasma membrane (c) cell wall (d) none of these Correct Answer: plasmodesmata Explanation: No explanation available. Be the first to write the explanation […]
Tonoplast is the membrane surrounding the
Tonoplast is the membrane surrounding the Options (a) cytoplasm (b) vacuole (c) nucleus (d) mitochondria Correct Answer: vacuole Explanation: No explanation available. Be the first to write the explanation for this question by commenting below.
Thylakoids in chloroplasts are
Thylakoids in chloroplasts are Options (a) interconnected sacs (b) a stack of lamella (c) interconnected tubules (d) place of Calvin cycle Correct Answer: interconnected sacs Explanation: No explanation available. Be the first to write the […]
Three of the following statements regarding cell organelles are correct while
Three of the following statements regarding cell organelles are correct, while one is wrong. Which one is wrong? Options (a) Lysosomes are double membrane vesicles budded off from Golgi apparatus and contain digestive enzymes (b) […]
The waxy substance associated with cell walls of cork cells is
The waxy substance associated with cell walls of cork cells is Options (a) lignin (b) hemicellulose (c) suberin (d) cutin Correct Answer: suberin Explanation: No explanation available. Be the first to write the explanation for […]