Download PDF – Biology Interactive Quiz: Unit 1 (Cytology & Molecular Biology) – Quiz 2

Biology Interactive Quiz: Unit 1 (Cytology & Molecular Biology) – Quiz 2

Q1. The process of cell division that results in two identical daughter cells is:

A) Meiosis

B) Mitosis

C) Binary fission

D) Budding

Q1. कोशिका विभाजन की वह प्रक्रिया जिसके परिणामस्वरूप दो समान संतति कोशिकाएं बनती हैं:

A) अर्धसूत्री विभाजन

B) समसूत्री विभाजन (Mitosis)

C) द्विखंडन

D) मुकुलन

Answer: (B)

Mitosis produces two genetically identical diploid daughter cells.

समसूत्री विभाजन दो आनुवंशिक रूप से समान द्विगुणित संतति कोशिकाएं पैदा करता है।

Q2. In which phase of the cell cycle does DNA replicate?

A) G1 phase

B) S phase

C) G2 phase

D) M phase

Q2. कोशिका चक्र के किस चरण में DNA की प्रतिकृति (Replication) होती है?

A) G1 चरण

B) S चरण

C) G2 चरण

D) M चरण

Answer: (B)

DNA replication occurs during the Synthesis (S) phase of interphase.

इंटरफेज के संश्लेषण (S) चरण के दौरान डीएनए प्रतिकृति होती है।

Q3. Crossing over occurs during:

A) Prophase of Mitosis

B) Prophase I of Meiosis

C) Metaphase II of Meiosis

D) Anaphase of Mitosis

Q3. क्रॉसिंग ओवर (Crossing over) किसके दौरान होता है?

A) समसूत्री विभाजन के प्रोफेज में

B) अर्धसूत्री विभाजन के प्रोफेज I में

C) अर्धसूत्री विभाजन के मेटाफेज II में

D) समसूत्री विभाजन के एनाफेज में

Answer: (B)

Crossing over happens in the Pachytene stage of Prophase I in meiosis.

क्रॉसिंग ओवर अर्धसूत्री विभाजन में प्रोफेज I के पैकिटीन चरण में होता है।

Q4. Chromosomes align at the equator of the cell during:

A) Prophase

B) Metaphase

C) Anaphase

D) Telophase

Q4. गुणसूत्र कोशिका के भूमध्य रेखा (Equator) पर किस चरण के दौरान संरेखित होते हैं?

A) प्रोफेज

B) मेटाफेज

C) एनाफेज

D) टीलोफेज

Answer: (B)

During metaphase, chromosomes align at the metaphase plate (equator).

मेटाफेज के दौरान, गुणसूत्र मेटाफेज प्लेट (भूमध्य रेखा) पर संरेखित होते हैं।

Q5. The longest phase of the cell cycle is:

A) Interphase

B) Prophase

C) Metaphase

D) Anaphase

Q5. कोशिका चक्र का सबसे लंबा चरण कौन सा है?

A) इंटरफेज

B) प्रोफेज

C) मेटाफेज

D) एनाफेज

Answer: (A)

A cell spends the majority of its time in interphase (G1, S, G2).

एक कोशिका अपना अधिकांश समय इंटरफेज (G1, S, G2) में बिताती है।

Q6. Meiosis results in the formation of:

A) 2 Diploid cells

B) 4 Diploid cells

C) 2 Haploid cells

D) 4 Haploid cells

Q6. अर्धसूत्री विभाजन (Meiosis) के परिणामस्वरूप क्या बनता है?

A) 2 द्विगुणित कोशिकाएं

B) 4 द्विगुणित कोशिकाएं

C) 2 अगुणित कोशिकाएं

D) 4 अगुणित कोशिकाएं (Haploid cells)

Answer: (D)

Meiosis produces four genetically distinct haploid gametes.

अर्धसूत्री विभाजन चार आनुवंशिक रूप से भिन्न अगुणित युग्मक पैदा करता है।

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