Answer :
Final answer:
The use of microorganisms in biotechnology, fermentation products, genetic engineering, DNA base pairing, chromosomal structure, nucleotide components, chromosome count, mitosis stage, and allele expression are essential concepts in Biology.
Explanation:
Use of Microorganisms in Practical Problems:
The use of microorganisms to solve practical problems is known as Biotechnology. This involves utilizing living systems and organisms to develop products and processes that benefit humans.
Fermentation Products:
During the fermentation of sugar by yeast, the final products are Ethanol and carbon dioxide.
Transfer of Genes:
The transfer of genes from one organism's DNA into another organism's DNA is called Genetic engineering.
Microorganisms in Dairy Production:
The group of microorganisms used in producing dairy products like cheese and yogurt are Bacteria.
DNA Base Pairing:
The correct pairing of bases in a DNA molecule includes Adenine - Thymine and Cytosine - Guanine.
Chromosomal Structure:
The thread-like structures inside a nucleus that contain genetic material are called Chromosomes.
Nucleotide Components:
A nucleotide consists of Sugar and phosphate, Bases, and Nitrogenous bases, excluding Ribose sugar.
Number of Chromosomes:
A human fertilized egg typically has 46 chromosomes.
Mitosis Stage:
In the stage of mitosis where sister chromatids line up along the equatorial plane of the cell, it is called Metaphase.
Allele Expression:
An allele expressed only when two alleles are present together is called Recessive.
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