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Practice MCQ Questions and answers on Biology-GK

Learn and practice General Knowledge questions and answers on Biology with very easy and understandable explanations. GK questions are very helpful different type of competitive exams. Page-7 section-9

Each section contains 100 MCQs on Biology .
61
During which phase or phase of cell division, the morphology of the chromosomes is best studied?
Discuss
Answer & Solution
Answer: Option C
Solution:
Chromosomal morphology is best observed at metaphase. Metaphase is a stage of mitosis in the cell cycle in which chromosomes are at their most condensed and coiled stage.
62
Metaphase is followed by the next phase of mitosis called
Discuss
Answer & Solution
Answer: Option A
Solution:
These phases occur in strict sequential order, and cytokinesis - the process of dividing the cell contents to make two new cells - starts in anaphase or telophase. Stages of mitosis: prophase, metaphase, anaphase, telophase. Cytokinesis typically overlaps with anaphase and/or telophase.
63
It is a process which converts a single-celled zygote into a great number of cells, which then differentiate into tissues.
Discuss
Answer & Solution
Answer: Option A
Solution:
Mitosis is a process which converts a single-celled zygote into a great number of cells, which then differentiate into tissues.
64
Which division is responsible for the continuity of hereditary information?
Discuss
Answer & Solution
Answer: Option A
Solution:
The purpose of mitosis is to maintain continuity among cell progeny, meaning that if a tissue is made of thousands of cells that resulted from many mitosis events, each cell has the same number of genes as the original cell.
65
The type of division which occurs in somatic cells is known as
Discuss
Answer & Solution
Answer: Option A
Solution:
Most of the time when people refer to “cell division,” they mean mitosis, the process of making new body cells and it occurs in all somatic cells. Meiosis is the type of cell division that creates egg and sperm cells i.e. Germ cells which are helpful in sexual reproduction.
66
Of the following, which is the most fundamental generalization in biology?
Discuss
Answer & Solution
Answer: Option C
Solution:
Cell theory is the most fundamental generalization in biology.
67
Where does protein synthesis take place?
Discuss
Answer & Solution
Answer: Option B
Solution:
Ribosomes are the sites in a cell in which protein synthesis takes place. Cells have many ribosomes, and the exact number depends on how active a particular cell is in synthesizing proteins.
68
Membrane bound pigment containing bodies present in the cells are called as
Discuss
Answer & Solution
Answer: Option C
Solution:
The plastid is a membrane-bound organelle found in the cells of plants, algae, and some other eukaryotic organisms.
69
Lysosome is formed from which of the following cell organelles?
Discuss
Answer & Solution
Answer: Option C
Solution:
Lysosomes originate by budding off from the membrane of the trans-Golgi network, a region of the Golgi complex responsible for sorting newly synthesized proteins, which may be designated for use in lysosomes, endosomes, or the plasma membrane.
70
In the cell of animals, some microorganisms and lower plants contain
Discuss
Answer & Solution
Answer: Option B
Solution:
In the cell of animals, some microorganisms and lower plants contain two centriole.