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LenaWriter [7]
4 years ago
10

What are introns and exons?

Biology
1 answer:
drek231 [11]4 years ago
6 0

An intron is a segment of a DNA or RNA molecule that does not code for proteins and interrupts the sequence of genes.


A exon is a segment of a DNA or RNA molecule containing information coding for a protein or peptide sequence.

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Why are viruses not living??
Luda [366]

Answer:

Viruses are not living cause they need any host (body or living organism) To perform its function.

Explanation:

5 0
3 years ago
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In men, the gene for baldness acts as a dominant gene and in women it acts as a recessive gene. A bald man who father was not ba
gogolik [260]
So: both parents' genotypes (concerning baldness gene) are the same: Bb. Possible genotypes of an offspring: BB, Bb, Bb, bb . bb means non-bald girl or boy. Bb means bald boy or non-bald girl. BB means bald boy or girl. there is 25% chance of conceiving a child with a genotype BB. But there is also 50% chance of conceiving a girl. So the answer is: 25% x 50% = 12,5%
5 0
3 years ago
A chestnut-colored horse mates with a white-colored horse to produce a roan-colored offspring. what type of inheritance pattern
serious [3.7K]

This kind of genetic expression represents co-dominance type of inheritance pattern.

<h3>What is co-dominance?</h3>

In terms of genetics, codominance is a sort of inheritance in which two distinct expressions (alleles) of the same gene result in distinct features in a person. That is, both qualities emerge rather than one trait predominating over the other, as in a plant or animal with several pigment colors.

One common characteristic of people that you can't really see just by looking at them, but that many people are aware of, is their blood type. One A allele and one B allele are present in individuals with the blood type AB. Their blood type is AB because both alleles are <u>expressed simultaneously.</u>

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To learn more about co-dominance:

brainly.com/question/14053639

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3 0
2 years ago
The formation of the contractile rings during cytokinesis are a function of: select one: a. microtubules b. microfilaments c. in
melomori [17]

Microfilaments forms when the contractile rings during cytokinesis are functioning .

Microfilaments are formed during cytokinesis, the last step of cell division, the contractile ring is composed of filamentous actin (F-actin) and the motor protein myosin-2, along with additional structural and regulatory proteins.

The contractile ring is responsible for cytokinesis in many eukaryotic cell types, and is thought to contribute to cell division by 'squeezing' the cell into two. The contractile ring forms under the surface of the plasma membrane and is linked to the plasma membrane such that, when it constricts, it creates a cleavage furrow that partitions the cell in two.

Hence ,B is correct option

To learn more about Microfilaments , here

brainly.com/question/13823438

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3 0
2 years ago
Which domain would hagfishes, primitive vertebrates, be classified in?
maria [59]
A because of the way the animal is configured
5 0
3 years ago
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