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Question
State the difference between:
Chromosome and chromatid:
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Solution
A chromosome is an organized structure of DNA and protein found in cells. It is a single
piece of coiled DNA containing many genes, regulatory elements and other nucleotide
sequences whereas a chromatid is one of the two copies of DNA making up a duplicated
chromosome, which are joined at their centromeres, for the process of cell division (mitosis
or meiosis).
RELATED QUESTIONS
The term “chromosomes” literally means ______.
Chromosomes are mainly made up of ______.
Choose the correct answer:
Chromosome is most coiled at (in mitosis) ________________
Label the lettered parts of the given figure and answer the following questions:
(i) What does this diagram represent?
(ii) What is the importance of'd'?
(iii) What are the 'staining' properties of 'b' and 'c'?
(iv) Who gave the term used for this structure today?
(v) What is a?
(vi) Is 'e' present in all chromosomes?
What are chromosomes?
Enumerate the various changes that occur in the nucleus of the cell during prophase.
Identify the stages of meiosven below and label them.
Draw a duplicate chromosome and label its part.
Write the functional activity of the following structure:
Spindle fibers
Name the following:
The pattern of arrangement of genes along a chromosome.
What' does 'P' and 'Q' represent in the following diagram of X and Y chromosomes? Select the correct option representing, its appropriate description.
Which of the following is TRUE with respect to the genes which inherit together during crossing over?
Normally, genes occur in a pair of chromosome, but genes of X and Y chromosomes shows different gene loci indicating ______.
Small swellings on the surface of the chromosome are called______.
Define the following term:
Chromatid
In the human male, a sperm contains autosomes and ______.
