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alex41 [277]
3 years ago
8

মাইটোসিস কোষ বিভাজনের প্রোফেজ ধাপ উদ্ভিদের বৃদ্ধিতে কিভাবে ভূমিকা রাখে?

Biology
1 answer:
nlexa [21]3 years ago
3 0

দুঃখিত, এই ভাষাটি ইংরেজিতে নেই...

আপনার দিনটি শুভ হোক ✨

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CHROMOSOMES are made up of two threads called chromatids joined at a point called the centromere.

In the chemical nature of chromosomes, each is made up of a protein framework which has a long molecule of DNA (deoxyribonucleic acid) coiled round it. A segment of DNA containing the instructions for building a protein which will result in a trait is called a GENE.

The GENES in the cell of a diploid organism contain all the necessary instructions for building up the organism.These instructions are written on a molecular scale.. Most genes contain information to direct the synthesis of specific proteins. Each such protein takes part in the development of a particular character.

A protein is made up of one or more chains of amino acids known as polypeptides. The sequence of bases in a DNA molecule determines the type of amino acid and the sequence in which they are arranged in a polypeptide chain.

A gene therefore is a sequence of triplets of the four bases which specifies the structure of a protein

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