Two well-understood sncrnas in eukaryotic cells are:

1 answer:

3 0

Two well-understood sncRNAs in eukaryotic cells are: microRNA and siRNA. SncRNAs are small non-coding RNAs with the main function in the regulation of different stages in gene expression. micro RNA are involved in RNA silencing (negative gene expression) and post-transcriptional regulation of gene expression(microRNA is complementary to a part of mRNA and can inhibit translation of that mRNA). siRNAs also called silencing RNA because of their possibility to inhibit translation by degrading mRNA after transcription.

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Mitochondria, the organelles involved in cellular respiration, can also generate chemicals called reactive oxygen species (ROSs)

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Answer:

Mitochondria, the organelles involved in cellular respiration, can also generate chemicals called reactive oxygen species (ROSs). ROSs can damage mitochondria. Damaged mitochondria generate more ROSs than healthy mitochondria. This is an example of a positive feedback mechanism

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using the food web, describe two complete food chains that include a ptoducer, consumer, and descomposer.

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Answer:

A food chain is a representation of what eats what in an ecosystem.

A combination of food chains is termed as a food web.

Example of two food chains in a food web are :

Example No 1:

Plant----- Grasshopper------ Frog---snake--- bacteria

Example No 2:

Plant---- rabbits---- fox---- bacteria

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In example no 2,plants are producers, rabbits are primary consumers and foxed are secondary consumers.

Decomposers are organisms that feed on the dead organisms in a food chain. In both the examples of food chain, bacteria are the decomposers.

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Which sescribes the matingof organisms that have different homozygous alleles for a sumgle trait

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Mono hybrid cross dihybrid cross homozygous cross heterozygous

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If glucose is not the energy of the cell, what is? how does glucose relate to this?

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Answer:

Adenosine triphoshate(ATP) is the energy currency of the cell.

Explanation:

Glucose is the Stored energy which is formed by the Glycogen. At the time when the energy is required glycogen is converted into glucose while, ATP is the energy which is ready to use. In aerobic conditions, Glucose produces about 30 ATP molecules. ATP molecule consists of HIGH ENERGY PHOSPHATE BONDS which are broken down when energy is required.

ADP + inorganic phosphate (pi)forms ATP

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Only one chromosome from each pair randomly passed to the s*x cells during meiosis and leads to differences between the siblings.

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