where and how are cromozomes formed state the significance
Answers
Question :
Where and how are chromosome formed ? State their significance.
Answer :
- Where are chromosome formed ?
=> Chromosomes are formed in the nucleus of the cell.
- How chromosomes are found ?
=>The genetic material in the DNA forms disc like structures called nucleosomes which further form thin strands called chromatins . They coil up around another structure called histone and form a chromosome.
- Significance of chromosome ?
=> Chromosomes are responsible for the transfer of genes and genetic material to the offspring during sexual intercourse.
Supplementary information:
- Nucleus is called the brain of the cell as it controls the activity of the cell.
- Chromosomes form rod shape only during reproduction ; it may be mitosis or meiosis.
- DNA : DeoxyriboNuclicAcid
CORRECT QUESTION :-
Where and how are chromosomes formed ?? State their significance.
Chromosomes are thread-like structures located inside the nucleus of animal and plant cells.
Each chromosome is made of protein and a single molecule of deoxyribonucleic acid.
❃ Each chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure.
❃Chromosomes are not visible in the cell’s nucleus—not even under a microscope—when the cell is not dividing. However, the DNA that makes up chromosomes becomes more tightly packed during cell division and is then visible under a microscope.
❃Each chromosome has a constriction point called the centromere, which divides the chromosome into two sections, or “arms.”
❃The location of the centromere on each chromosome gives the chromosome its characteristic shape, and can be used to help describe the location of specific genes.
◆Chromosomes are important because they contain the entire (or at least the vast majority of) genetic information for an organism.
◆ The organism's DNA is contained within the chromosome as a long series of nucleotides that are organized into genes.