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cupoosta [38]
3 years ago
15

Mutagens are useful in biotechnology research for producing organisms with altered phenotypes. producing new organisms which hav

e beneficial traits from two or more organisms. selecting genetic mutants resistant to radioactivity. removing undesirable traits from microbes. producing DNA fragments for cloning.
Biology
1 answer:
ICE Princess25 [194]3 years ago
4 0

Answer:

The correct answer is A.

Explanation:

A mutagen changes the level of mutations that occur in the DNA either by affecting it physically or chemically. This helps researchers create different organisms with altered phenotypes according to what the research needs so that the genes can be investigated further under a controlled environment.

So the answer is A.

I hope this helps.

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The ovaries will secrete estrogen during preovulation when stimulated by
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When stimulated by the hormone known as FSH (Follicle-stimulating hormone).

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5 0
3 years ago
Who would the double pour technique be a preferred method of fabricating a cast/study model
vodomira [7]

Answer:

Prevents distortion

Explanation:

Double-pouring technique is used for casting, it prevents distortion of the material to be fabricated or the study model.

It ensures the study or fabricated model is firmly withheld, increasing the material life span, and can be used at extreme conditions.

This type of technique takes longer time to set than the single pour method as it gives the needed base to yeild the oral structures.

4 0
2 years ago
Describe the stages of cellular respiration?
babymother [125]
<span>here are three main stages of cellular respiration: glycolysis, the citric acid cycle, and electron transport/oxidative phosphorylation. Glycolysis literally means "splitting sugars.". Glucose, a six carbon sugar, is split into two molecules of a three carbon sugar. Glycolysis takes place in the cell's cytoplasm.</span>
8 0
3 years ago
Galaxy that has a dense core of stars and has spiral arms
Slav-nsk [51]
All galaxies have a dense core of stars. Spiral galaxies, however, have arms that are often visible. There are two kinds of spiral galaxies: barred, where there appears to be a line running from arm to arm through the core, and <span>ordinary, where there is no bar. @Badbunnyhunny</span>
3 0
3 years ago
Role of Lipids and Carbohydrates - Type Lipid or Carbohydrate behind each question. 16. Provide long term energy storage. 17. Pr
zhuklara [117]

Answer:

16. Carbohydrates  

17. Lipids

18. Carbohydrates

19. Carbohydrates

20. Lipids

21. Lipids

22. Carbohydrates

23. Lipids

Explanation:

Carbohydrates are organic molecules composed of carbon, hydrogen and oxygen. Carbohydrates can be classified into three types: monosaccharides (e.g. glucose), disaccharides (e.g., lactose), and polysaccharides (e.g., starch). Cellulose is a carbohydrate where many glucose rings chain together, while chitin is a polysaccharide consisting of chains of modified glucose molecules.

Lipids represent a diverse group of organic molecules that include, among others, fats, waxes, oils, hormones, etc. Lipids play a role by insulating (and protecting) the body. For example, there is a layer of fats beneath the skin which enables to maintain body temperature relatively constant. In animals, lipids constitute about 50% of the mass of cell membranes. These membrane lipids are mainly phospholipids, glycolipids and cholesterol. There are hormones that derive from lipids such as steroid hormones, which derive from cholesterol. Some examples of steroid hormones are testosterone, estrogen and cortisol.

4 0
2 years ago
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