Biology Class 9th

301. Nervous Tissue is found in,

A) Brain

B) Spinal Cord

C) Nerves

D) All of the Above.

302. The Cell Cycle consists of _______ stages.

A) Two

B) Three

C) Four

D) Six

303. Interphase is also called:

A) Division Phase

B) Preparation Phase

C) Resting Phase

D) None of the above

304. The Longest part of cell cycle is:

A) Interphase

B) Metaphase

C) Anaphase

D) Telephase

305. Interphase can be divided into ______ sub phases.

A) Two

B) Three

C) Four

D) Five

306. In G-1 Phase, G stands for:

A) Growth

B) Generation

C) Gap

D) Germination

307. The Longest sub phase of Interphase:

A) G-1 Phase

B) S Phase

C) G-2 Phase

D) G-0 Phase.

308. S- Phase, what does S stand for:

A) Synthesis

B) Shorter

C) Semimetal

D) Symmetrical

309. During S- Phase:

A) cells duplicate its chromosomes

B) cell undergoes chemical changes

C) cell produces organelles

D) cell prepares proteins

310. Each Chromosome consists of _________ sister chromatids.

A) 2

B) 4

C) 6

D) 8

311. The Period between completion of DNA synthesis and the beginning of Active cell division phase:

A) G-1 Phase

B) S Phase

C)  G-2 Phase

D) G0 Phase.

312. In G-2 Phase, Cell performs following:

A) Cell Prepares Proteins

B) Cell produces more organelles

C) Cell undergoes chemical changes.

D) None of the Above.

313. Many Cells stop dividing temporarily or permanently and continue to their specialized jobs. This phase is called:

A) G-1 Phase

B) S Phase

C) G0 Phase

D) G-2 Phase

314. Which of the following cell, does not enter G0 phase, and continues to divide throughout life:

A) Epithelial Cells

B) Nerve Cells

C) Bone Cells

D) Red Blood Cells.

315. Synthesis of RNA, ribosome and enzymes occurs in which phase:

A) G2 Phase

B) S Phase

C) G1 Phase

D) G0 Phase.

316. Cell divides by which of the following:

A) Mitosis

B) Meiosis

C) Both A and B

D) None of the above.

317. Cellular Division was first observed by:

A) Robert Hooke

B) Robert Brown

C) Walter Flemming

D) Alex Fisherman

318. Prokaryotes divide by which of the following:

A) Mitosis

B) Meiosis

C) Binary Fission

D) Both A and B

319. The Process in which Nucleus undergoes series of changes:

A) Mitosis

B) Meiosis

C) Binary Fission

D) Budding

320. Process of Mitosis can be divided into______ stages.

A) 2

B) 3

C) 4

D) 5