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Question
Solution
Chromosomes are the thread like structures present in the nucleus of the cell. They are covered with a sheath made up of proteins and filled with granular matter called matrix. Inside the matrix, there are two threads called chromonemata.
The chromosome consists of two symmetrical strands called chromatids. Each chromosome consists of a distinct constriction called centromere which gets attached to the spindle network.
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RELATED QUESTIONS
Choose the best option out of the four alternatives a, b, c and d
Question 1:
The number of chromosomes in a certain type of cell division is halved. This kind of cell
division occurs in.
(a) Only testis
(b) Only ovary
(c) Both ovary and testis
(d) All body cells
“First meiotic division is the reduction division” what does the word ‘reduction’ refer to in this statement?
The component which is in the nuclei of cells and carries the hereditary characteristics is called ______.
Choose the correct answer:
Chromosomes appear at equator in ____________
Choose the correct answer:
Chromosome is most coiled at (in mitosis) ____________
Choose the correct answer:
Chromosome is most coiled at (in mitosis) ________________
Write a sentence of the following:
Centromere
Synthesis phase in the cell cycle is called so for the synthesis of more of
What is the importance of meiosis in creating variations?
Give Reasons for the following
The meiosis is called reductional division
Explain the Term Zygotene
Explain the Term Centrioles
Give Technical Terms
The stage at which synapsis in chromosomes to form bivalents.
Long answer type question.
Describe the different types of chromosomes.
In humans, the sex chromosome complement is
Small swellings on the surface of the chromosome are called______.
Define Aneuploidy.
The two non-sister chromatids of a paired chromosome are attached to each other at ______ during the process of crossing over.
Define the following term:
Chromatid
Rewrite the correct form of the statement by changing the first or last word only:
Duplicated chromosomes remain attached at a point termed as centrosome.
