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Hydrogen bond: A weak bond in which a hydrogen atom in one molecule is attracted to an electronegative atom, in the same or different molecule. Covalent bond: A type of chemical bond where two atoms are connected to each other by the sharing of two or more electrons.
Explanation:
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Humans have 23 pairs of chromosomes--22 pairs of numbered chromosomes, called autosomes, and one pair of sex chromosomes, X and Y. Each parent contributes one chromosome to each pair so that offspring get half of their chromosomes from their
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d. allow for coordinated gene expression of related genes on one mRNA controlled by one promoter.
Explanation:
An operon is a group of functionally-related genes that share the same promoter region and the same operator which interacts with specific repressors or activators, and they are transcribed as a unit. This transcriptional unit (operon) is present in prokaryotic organisms (i.e., bacteria and archaea) but absent in eukaryotes. In an operon, each structural gene is known as a cistron, and they are transcribed together as a polycistronic primary messenger RNA (mRNA).
In <span>Some say that black roses do not exist, but apparently there are black roses in Turkey, but only during the Summer, when the dark crimson turns black.</span>principle its possible to genetically engineer
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Heyyy
Plant cells require chloroplasts for the process of photosynthesis and to store food energy. And most leaves appear green due to this organelle present in it.
Whereas mitochondria present in both the plant and animal cells to produce the energy necessary for the cell's survival and functioning.
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