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प्रश्न
The term “chromosomes” literally means ______.
पर्याय
Inherited bodies
Twisted threads
Coloured bodies
Shining threads
उत्तर
The term “chromosomes” literally means coloured bodies.
Explanation:
The term "chromosomes" literally translates to "coloured bodies." This term is derived from the Greek words "chroma," meaning colour and "soma," which means body. It reflects the ability of chromosomes to absorb specific dyes and become visible under a microscope, allowing scientists to examine and distinguish between them.
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संबंधित प्रश्न
State the exact location of the Centromere
Name the following:
The number of chromosomes present in a nerve cell of a human being.
During the pairing of chromosomes in meiosis, the ________ chromosomes come to lie side by side.
Choose the correct answer:
In an interphase cell chromosome are as _____________
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?
Choose the correct answer:
Sex of an individual is determined by ____________
Give Reasons for the following
Chromosomes are the carriers of heredity.
Explain the Term Zygotene
Complete the following sentence with appropriate word :
Polytene chromosomes are found in _________ of fly larvae.
State the Location: Polytene chromosome
Give Reason:
The Law of independent assortment holds good for the gene pairs that occur in different pairs of chromosomes.
Name the following:
A specific part of a chromosome that determine hereditary characteristics.
With the help of a neat labelled diagram, describe the structure of chromosome.
In humans, the sex chromosome complement is
The thin thread-like structures found in the nucleus of each cell are called ______.
______ is a sudden permanent heritable change that can occur in the gene, in the chromosome or chromosome number.
Identify the TRUE statements with respect to aneuploidy.
- When the chromosome number is not the exact multiple of the haploid set, it is described as aneuploidy.
- Aneuploidy is only addition of one or more chromosome(s) to the total number of chromosomes in a cell.
- Aneuploidy is further classified as hypoploidy and hyperploidy.
Normally, genes occur in a pair of chromosome, but genes of X and Y chromosomes shows different gene loci indicating ______.
