10488+ MCQ Questions in english

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10488+ MCQ Questions in english हिन्दी

5644. Which of the following is a type of mutation that changes one single nucleotide within the DNA sequence?

A. Insertion

B. Deletion

C. Point mutation

D. Duplication

5643. Which molecule transmits genetic information from DNA to ribosome?

A. mRNA

B. tRNA

C. rRNA

D. DNA

5642. Which of the following happens during the G1 phase of the cell cycle?

A. DNA replication

B. Protein synthesis

C. Chromosome segregation

D. Cytokinesis

5641. What type of bond holds the two strands of DNA together?

A. Ionic bond

B. Hydrogen bond

C. Covalent bond

D. Disulfide bond

5640. What does the process of osmosis involve?

A. Movement of water molecules from an area of high concentration to low concentration

B. Movement of water molecules against their concentration gradient

C. Movement of solute molecules across the membrane

D. Active transport of ions

5639. Which of the following is NOT part of the structure of DNA?

A. Phosphate group

B. Deoxyribose sugar

C. Ribose sugar

D. Nitrogenous base

5638. Which organelle is known as the powerhouse of the cell?

A. Chloroplast

B. Ribosome

C. Mitochondrion

D. Golgi apparatus

5637. In genetics, what does "homozygous" mean?

A. Two different alleles for a gene

B. Two identical alleles for a gene

C. Only one allele for a gene

D. A gene located on the sex chromosome

5636. Which cell organ forms ribosomes?

A. Golgi apparatus

B. Nucleus

C. Endoplasmic reticulum

D. Nucleolus

5635. What is the main reason of the Calvin cycle?

A. To form ATP

B. To assimilate carbon in the form of glucose

C. To create oxygen

D. To move electrons

5634. Which of the following is correct about RNA?

A. RNA comprises deoxyribose sugar

B. RNA is double-stranded

C. RNA has the nitrogenous base uracil

D. RNA is only found in the nucleus

5633. What occurs during anaphase of mitosis?

A. Chromosomes are separated and moved to opposite poles

B. Chromosomes become aligned at the equator

C. Nuclear envelope is reformed

D. DNA replicates

5632. What does the enzyme helicase do?

A. It synthesizes RNA

B. It separates the DNA strands during replication

C. It combines Okazaki fragments

D. It polymerizes nucleotides to the elongating DNA strand

5631. Which molecule carries the amino acids to the ribosome in the process of translation?

A. mRNA

B. tRNA

C. rRNA

D. DNA

5630. Which of the following is a type of passive transport?

A. Active transport

B. Osmosis

C. Endocytosis

D. Exocytosis

5629. Which type of bond occurs between the nitrogenous bases of complementary DNA strands?

A. Ionic bond

B. Hydrogen bond

C. Covalent bond

D. Peptide bond

5628. What is the function of the large central vacuole in plant cells?

A. Store nutrients and waste products

B. Regulate cell division

C. Synthesize proteins

D. Perform cellular respiration

5627. Where in the cell does the citric acid cycle take place?

A. Cytoplasm

B. Nucleus

C. Mitochondria

D. Endoplasmic reticulum

5626. Which of the following is an example of a prokaryotic organism?

A. Yeast

B. Bacteria

C. Fungi

D. Plant cell

5625. Which of the following is a role of the Golgi apparatus?

A. Synthesis of proteins

B. Packaging and distribution of proteins

C. Production of ATP

D. Synthesis of lipids

5624. What is the primary role of chlorophyll in photosynthesis?

A. Absorb light energy

B. Convert glucose to oxygen

C. Store energy

D. Synthesize glucose

5623. Which of the following is a characteristic of 'product bundling'?

A. Selling individual products at a high price

B. Offering several products together at a lower price than the total individual price

C. Creating custom products tailored to each customer’s needs

D. Offering a single product to a very niche market

5622. In foreign trade, the term 'tariff' is used to denote:

A. A tax imposed on imported or exported goods

B. A system of exchanging goods without the use of money

C. A method of protecting local industries from foreign competition

D. A global standard for setting prices on goods and services

5621. What is the 'Hawthorne effect' in the workplace?

A. The effect of changes in the work environment on employee productivity

B. The impact of external competition on employee performance

C. The influence of employee perks on job satisfaction

D. The relationship between employee autonomy and job performance

5620. Which of the following statements about 'outsourcing' is correct?

A. Outsourcing eliminates the need for quality control

B. Outsourcing enables businesses to focus on core activities and reduce costs

C. Outsourcing always leads to higher-quality products

D. Outsourcing involves hiring only domestic suppliers and service providers

5619. Which of the following is an example of 'economies of scope'?

A. A company saves cost by increasing production of one product

B. A company reduces its total cost by producing a variety of related products

C. A company lowers its price to gain a competitive advantage

D. A firm that is consolidating its operations by merging with its competitors

5618. Which of the following is a definition of 'operating activities' in the context of a business's cash flow?

A. Payments received from issuing shares

B. Cash inflows from selling products and services

C. Cash paid to buy long-term assets

D. Cash obtained by borrowing

5617. In business, the term 'churn rate' is defined as:

A. The rate at which a company gains new customers

B. The rate at which customers leave or stop using the company's services

C. The rate of return on investment from advertising

D. The growth rate of the company's revenue

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