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pogonyaev
3 years ago
5

Where is DNA not found?

Biology
2 answers:
Nostrana [21]3 years ago
8 0

Answer:

C

Explanation:

Mnenie [13.5K]3 years ago
5 0

Answer:

B

Explanation:

DNA- Deoxyribonucleic Acid thrives in nuclei and the red blood cell has none.

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Which statement best describes the term symbolism
Nataly_w [17]

Answer:

C.  A writer uses an object to resent significant ideas or qualities.

Explanation:

7 0
3 years ago
Which of the following is not a true statement comparing exoskeletons and endoskeletons?
nordsb [41]

Answer:

Exoskeletons provide less mechanical leverage.

Explanation:

There are two types of skeleton in living beings: the endoskeleton (which vertebrates possess, is lined with epithelial tissue and has bones and cartilage) and the exoskeleton, a skeletal structure that is located outside the body of the living being. , is an external skeleton. They are common in invertebrate animals, which have no internal bone structure.

The exoskeleton is a tough but flexible outer layer, not formed by bones, unlike the vertebrate endoskeleton. Its function is mechanical, chemical and biological protection, avoid excessive water loss, muscle support and serves as a connecting point for legs, wings and other appendages. However, this type of skeleton provides less mechanical leverage.

On the other hand, the endoskeleton is the name given to the internal skeleton, which is inside the body. This body structure is mainly seen in vertebrate animals and has the function of supporting and moving the body, as well as protecting some internal organs. Unlike exoskeleton, the endoskeleton provides more mechanical leverage.

4 0
3 years ago
What would be the effect of a mutation in the coding region of the lactase gene?
Fynjy0 [20]

Lactase refers to an enzyme that can dissociate lactose sugar into glucose and galactose. This enzyme plays an important role in the digestion of milk that comprises high lactose sugar. In case, if a mutation occurs in the gene codon of lactase, then two possibilities can take place. These are as follows:  

1. Loss of mutation: In this case, the person becomes lactose intolerant because of mutation in lactase gene codon. Due to this, there is low mRNA expression and thus low production of the enzyme lactase. This is also known as lactase non-persistent phenotype.  

2. Gain in mutation: In this case, the person gain an increase in mRNA expression of the lactase gene, thus more production of lactase takes place than usual. This kind of individual exhibits lactase persistent phenotype.  


5 0
3 years ago
How does the sexual life cycle of the human species introduce genetic
Lana71 [14]
All of the above- 1, 2, and 3 These introduce variation into the chromosome or into the zygote and create cells and offspring unique from the parents.
4 0
2 years ago
Which activities of the body are controlled by the central nervous system?
Anon25 [30]
Involuntary, meaning things in the body such as your heart is all regulated to act unconsciously while also receiving directives from the brain.
4 0
3 years ago
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