Explain why molecules do not have electric charge

Biology

1 answer:

EastWind [94]3 years ago

4 0

Answer:

Explain why molecules do not have electric charges. individual molecules contain the same number of electrons and protons. they cancel each other out. ... Molecules form when atoms bond together with (covalent) [kohVAYlent] bonds.

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Full induction of the lac operon occurs when _____. Select one: a. lactose levels are high and glucose levels are low b. lactose

babymother [125]

Answer:

The suitable option will be - A.

A. lactose levels are high and glucose levels are low

Explanation:

Lac operon :

It is a operon that is regulated by a set of genes and is regulated altogether and is transcribed into a single RNA in the presence of lactose.

It is mainly found in E.coli. Lac operon is mainly used for lactose metabolism. There are 3 genes in this system - lacZ, lacY, and lacA.
LacZ codes for β-galactosidase which cleaves lactose into glucose and galactose. LacY codes for Beta-galactoside permease, which helps in the entry of lactose in the cell. LacA codes for Galactoside acetyltransferase.

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Pollution is the only way that humans can cause changes to ecosystems. Please select the best answer from the choices provided T

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In a population of wild bees, a mutation resulted in slightly larger wingspan in some of the bees. This larger wingspan made the

Akimi4 [234]

Answer:

In reproductive or sexual cells

Explanation:

There are two principal types of cells in the organism: Somatic diploid cells (2n) that reproduce by the process of mitosis, and germ cells that are diploid reproductive cells in charge of gamete production. These germ cells suffer both mitosis (to form more sexual cells) and meiosis (giving place to haploid gametes: sperm and egg cells, through the gametogenesis process). Both somatic cells and germinal cells will end their cycle becoming two daughter cells with the same genetic dotation.

Gametes from each parent will merge in the process of fecundation, during which a new diploid cell called a zygote emerges through fertilization. The zygote is a complete cell from the structural point of view that suffers successive mitosis to form the new organism.

Any cell in the organism might suffer mutation.

If the mutation occurs in the somatic cells, it will produce a population of identical mutated cells in that organism. However, this mutation in these cells is not inheritable. By definition, mutations in somatic cells do not inherit because these cells do not produce progeny.
If the mutation occurs in the germinal line, in the germ cells, or the sexual cells, this <u>mutation will pass to the offspring</u>. The organism with mutated germinal cells might express a normal phenotype, but this mutation will be detected in the progeny.