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barxatty [35]
3 years ago
9

Why is dna replication considered semiconservative?

Biology
1 answer:
elixir [45]3 years ago
4 0
DNA replication is semi-conservative because each helix that is created contains one strand from the helix from which it was copied.
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What is the structure and function of genes?
irina1246 [14]

Structure of genes:

A gene is composed of a nucleotide chain, which is made up of DNA strands. Genes are composed of nucleotides.

DNA consists of A, T, G, and C nucleotides. Hydrogen bonds form with opposite-strand nucleotides, and phosphodiester bonds form with adjacent-strand nucleotides

Nucleotides are composed of nitrogenous bases (A, T, G, and C), phosphate, and pentose sugar

Genes consist of two types of elements: core elements and regulatory elements.

In fact, core sequences or elements play an important role in protein synthesis. Gene expression is maintained by regulatory elements. 

Among the most important elements of DNA are exons. The regulatory elements of a gene are sequences like promoters, enhancers, and silencers.  

Function of genes:

A gene's primary function is to form or manufacture proteins, but it's not the only one. Indeed, it's partially true. 

Some genes do not produce protein even though microRNAs, for example, are tiny ribonucleic acids formed from some genes, but they don't produce proteins. Instead, it regulates gene expression.

A gene carries instructions that determine your features, such as eye colour, hair colour, and height. For each feature, there are several gene variations. 

To know more about  genes refer to:

brainly.com/question/28168605

7 0
1 year ago
If there was complete (100%) selection against an uncommon deleterious recessive genotype (aa) in the human population, would yo
Lady_Fox [76]

Answer:

Explanation:

Selection is used in identifying some important traits for improving on or elimination.

Selection against is when a selection does not favour a particular allele. If recessive allele is selected against there will be a reduction in the frequency of the allele.

Since it was complete selection against the frequency of the allele will move from its level of fitness to zero and the allele of the gene will be lost completely in the genome of the organism.

natural selection i.e selection done by nature is not enough to get 100% selection against because of the allele reoccuring in heterozygous form but with artificial selection by man it is achievable.

3 0
4 years ago
7 organelles shared by both plant and animal cell
djverab [1.8K]

Answer:

neucleas

cell membrane

cytoplasm

mitochandria

DNA

Vacuole

ribosomes

Explanation:

3 0
3 years ago
What are the two ways that carbon enters into the atmosphere?
san4es73 [151]
Animals and plants need to get rid of carbon dioxide gas through a process called respiration. Carbon moves from fossil fuels to the atmosphere when fuels are burned. When humans burn fossil fuels to power factories, power plants, cars and trucks, most of the carbon quickly enters the atmosphere as carbon dioxide gas.
6 0
3 years ago
Read 2 more answers
The structure of eugenol is given below. select which functional group below is present in eugenol.
vitfil [10]
The alcohol functional group is present in eugenol.

The -OH group is termed as the alcohol group in organic molecules and molecules that have this group contain "ol" in their names. Other examples of compounds with the alcohol functional group are ethanol, phenol and methanol.
3 0
4 years ago
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