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3 years ago

What characteristics of DNA results in cell differentiation in developing embryos?

Biology

1 answer:

Elina [12.6K]3 years ago

5 0

Hi!

The correct option is B. Which genes are active.

Embryonic differentiation is a developmental process by which embryonic cells give rise to specialized cells and a diverse range of tissue structures. All of this unique cells essentially rise from a type of cells that are known as pluripotent cells.

But how do these pluripotent embryonic stem cells know which cells to differentiate into? This is where genes come into play. The cell has an inherent signalling ability that determines which gene is to be active and expressed. These specifically activated genes then translate into proteins for which it is specific, giving each cell, tissue and organ its particular identity.

Hope this helps!

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The gene carried by all members of a particular population make up the populations

wariber [46]

The answer might be gene pool?

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3 years ago

Hormones are ___________. chemicals released into the bloodstream by the endocrine glands chemicals found in the synaptic vesicl

Oksi-84 [34.3K]

Hormones are called chemical messengers

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2 years ago

Which two triangles are congruent? Complete the congruence statement.

Rasek [7]

Answer:

Triangles FGH and UVW

Explanation:

For two triangles to be congruent, they must be the same size and shape. We know these two triangles are the same shape because of the hash marks being in the same places and representing the same values on each one.

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2 years ago

What kind of biomolecule are enzymes typically composed of? What effect do enzymes have on their substrates and the overall reac

ivann1987 [24]

Enzymes are typically composed of amino acids.

Enzymes specifically binds to their substrate, and accelerate the biological or in-vitro reactions.

Four real-life examples of enzymes are: Lipase, Maltase, DNA ploymerase and Alcohol dehydrogenase.

Explanation:

All enzymes are proteins. They are composed of amino acids as monomer units linked by polypeptide bonds.

The substrate is a molecule which has specific enzyme binding sites for the highly specific enzyme called as active sites. With this binding, the enzyme-substrate complex is formed, undergoes the chemical reaction and new product is formed. Enzymes accelerate the biological reactions by lowering the reaction's activation energy.

Four-real life examples of enzymes are:

Lipase enzyme: catalyses the hydrolysis of fats and triglycerides in the small intestine. Lipase enzyme is secreted by pancreas.

Maltase enzyme: catalyses the breakdown of maltose sugar. It is secreted by salivary glands and our mouths.

DNA Polymerase Enzyme: It catalyses the DNA replication in the cells. It is secreted by the nucleus

Alcohol dehydrogenase: It catalyses many reactions in the body as the reduction of NAD to NADH. It is secreted by the liver.

7 0

2 years ago

What is a gene

Ann [662]

Answer:

D. A segment of DNA molecule

Explanation:

Gene is a segment of a DNA molecule that holds instruction needed for the synthesis of useful products (protein). Ideally, DNA is the storage material of genetic information in a cell. The DNA harbors the GENE, which itself is being expressed in order to use the information contained in it to produce useful products responsible for the phenotype of an organism.

A gene contains sequences made up of nucleotide bases that determines the sequence of amino acids to be produced, and ultimately the type of protein.

3 0

2 years ago

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