This set of Human Anatomy Multiple Choice Questions & Answers (MCQs) focuses on “Embryology – Animal Cell”.
1. Centromere is required for _________
a) Transcription
b) Crossing over
c) Movement of chromosomes towards poles
d) Cleavage
View Answer
Explanation: Centromere is a special region of a chromosome. It helps in the movement of chromosomes towards poles.
2. Polytene chromosomes are formed due to _____________
a) Endomitosis
b) Meiosis
c) Mitosis
d) Endomixis
View Answer
Explanation: Polytene chromosomes are oversized chromosomes. It is formed due to endomitosis (without cell division).
3. Racker’s particles occur in _________
a) Mitochondria
b) Nucleus
c) Chromosome
d) Golgi complex
View Answer
Explanation: Racker’s particles occur in Mitochondria. They are also known as F1 particles. They help in production of ATP.
4. Cell membrane is ___________
a) Semi permeable
b) Permeable
c) Selectively permeable
d) Impermeable
View Answer
Explanation: Cell membrane is also known as plasma membrane. It is semi permeable membrane surrounding the cytoplasm of a cell.
5. Which of the following does not have a membrane?
a) Ribosome
b) Mitochondria
c) Nucleus
d) Chloroplast
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Explanation: Ribosome are the protein builders or the protein synthesizer of the cell. They consist of two major components: the small subunit and the large subunit.
6. Cell theory was proposed by ____________
a) Virchow
b) Robert Hooke
c) McClintock
d) Schleiden and Schwann
View Answer
Explanation: Cell theory was proposed by Schleiden and Schwann. It states that
All living things are composed of cells.
All the cells are produced from other cells
Cells are the basic units of structure and function in living things.
7. There is no DNA in ______________
a) An enucleated ovum
b) Mature RBC
c) Hair root
d) Mature spermatozoa
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Explanation: Mature RBC is flexible and oval biconcave discs. They lack a nucleus and most organelles in order to accommodate maximum space for hemoglobin.
8. Cell theory is not applicable to _________
a) Virus
b) Bacteria
c) Fungi
d) Algae
View Answer
Explanation: Cell theory is not applicable to the Virus. Viruses can be considered alive depending upon the host. They are much smaller than cells.
9. Histones octamer contains _____________
a) Eight types of histones
b) Five types of histones
c) Eight histones of four different types
d) Six types of histones
View Answer
Explanation: Histones octamer is an 8 protein complex found at the center of nucleosome core particles. it consists of two copies of each f four core histone proteins (H2A, H2B, H3 and H4).
Sanfoundry Global Education & Learning Series – Human Anatomy and Physiology.
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