What is a nucleotide and a nucloeside?

Answers

Answer 1
Answer: A nucleoside is composed of a nitrogenous base attached covalently with the ribose or deoxyribose sugar. A nucleotide is composed of a nitrogenous base attached covalently with the ribose or deoxyribose sugar and also have 1 to 3 phosphate group.
Answer 2
Answer: It is just the t and s

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Do you think you can accurately determine a person's genotype by observing his or her phenotype?
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What did Mendel use pea plants to study?
A scientist makes an image of all of a person's chromosomes. What technique is she using?
organs are directly made up of what lower level of cellular organization? A.cells B.tissues C.organisms D.organ systems

Which characteristic makes a cell membrane selectively permeable? the smooth outside of the membrane the chemical nature of the membrane the rigid nature of the membrane the thickness of the membrane

Answers

Answer:

chemical nature of the membrane

Explanation:

The cell membrane is bilayer of amphipathic phospholipids and proteins The hydrophobic tails of phospholipids make the inner core of the membrane while hydrophilic heads are oriented towards the surface of the membrane.  

The membrane is selectively permeable as it allows only nonpolar, small and uncharged substances to pass through its hydrophobic inner core. Hence, the chemical nature of the membrane makes it choose the allowed substances to be transported.

What makes a planet living

Answers

What makes a planet living is if it has living organisms on it. We define Mars as not living because we don't know if it contains life.
What makes a planet living is if it has biosphere.( or, living things on it)

Which statements describe gene therapy? Check all that apply. Gene therapy includes selective breeding. Gene therapy includes the cloning of DNA. Gene therapy is a form of genetic engineering. Gene therapy is an attempt to cure diseases. Gene therapy involves replacing mutated genes.

Answers

A method that modifies the gene structure of a person to treat and cure illness is called gene therapy.

The correct answer is:

  • Option C. Gene therapy is a form of genetic engineering.

  • Option D. Gene therapy is an attempt to cure diseases.

  • Option E. Gene therapy involves replacing mutated genes.

The explanation for this is:

  • Genetic engineering uses rDNA technology to reconstruct the genetic makeup. Gene therapy also remodels the gene to cure and treat diseases.

  • With the help of gene therapy mutated or defective genes are replaced to cure disease.

  • It has a hopeful feature in treating deadly ailments like cancer, diabetes, AIDS and many.

  • Gene replacement therapy supersedes the faulty genes with healthy ones.

Therefore, gene therapy is a form of genetic engineering that replaces mutated genes to cure diseases.

To learn more about gene therapy follow the link:

brainly.com/question/22694188

Answer:

Gene therapy is a form of genetic engineering.

Gene therapy is an attempt to cure diseases.

Gene therapy involves replacing mutated genes.

Explanation:

What is a skeletal muscle

Answers

You can go to google

Answer:

A muscle which is connected to the skeletal to move are body is know as skeletal muscle

Which best describes a bird’s role as it eats seeds? parasite, predator, habitat, or niche?

Answers

The answer is niche. Niche is the role and position of species in the environment. Thus, bird’s role as it eats seeds is the example of niche. Habitat is an area inhabited by a particular species, so bird's role cannot be habitat. Parasite is an organism that lives on/in another organism (host) at the expense of the cost. Also, predator eats its pray. If a bird eats seeds, it is not parasite or predator.

The word which best describes a bird’s role as it eats seeds is: D. niche.

What is a niche?

A niche can be defined as the interrelationship that exist between a species of a living organism and a specific environmental condition such as the different abiotic and biotic factors affecting it.

This ultimately implies that, a niche describes the role and position of species of a living organism such as a bird in their habitat or physical environment.

In conclusion, an example of a niche is a bird’s role as it eats seeds.

Read more on niche here: brainly.com/question/17643283

Gradualism is a pattern of evolution in whichA. a single species evolves into several closely related species.
B. several distantly related species develop similarities.
C. a species evolves at a slow, steady pace.
D. a species has periods of little evolution interrupted by periods of rapid evolution.
 
Mass extinction would most likely result from which of the following events?
A. A disease kills off a single species of predator within an ecosystem.
B. A wildfire burns a national park.
C. Global temperatures drop several degrees after several massive volcanic eruptions.
D. A massive earthquake strikes North America.

Answers

1.   C. a species evolves at a slow, steady pace. 

Gradualism, is the process by which a certain specie or creature undergo changes and variations in a limited and solely focusedly confined in long period of time.

2.      
A. A disease kills off a single species of predator within an ecosystem.


Mass extinction is a massive and global elimination in a certain specie or species. It doesn’t involve itself only in a secured and measurable area but it impacts the whole large-scale of population as a whole.