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vova2212 [387]
4 years ago
15

Select which example are induced mutations.

Biology
1 answer:
rjkz [21]4 years ago
3 0

Answer:

The examples of induced mutations are:

a. Nitrous acid causes the deamination of adenine to hypoxanthine

d. Ionizing radiation causes chromosomal fragmentation

Explanation:

Induced mutations are done by breeders to produce crops with required or desirable traits.

Induced mutation through chemical means can be done by introducing chemical mutagens like nitrous acid. Generally, nitrous acid has the capability to deaminate the nitrogenous bases and also to replace its amino group by a keto group.

So when nitrous acid is added to:

  • Adenine, it converts to hypoxanthine
  • Cytosine, it converts to uracil
  • Guanine, it converts to xanthine

Ionizing radiations using gamma radiations is a type of spontaneous induced mutation which induces genetic variability by causing chromosomal fragmentation and instability.

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Cheap and great environment/nutrients

Explanation:

Petri Dishes are filled with nutrients and a bacteria specific surface to promote quick and visible grow

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4 years ago
Are all introduced species invasive?
tatyana61 [14]
What is an invasive species? they are plants/fungi/animals that isn't native to a specific area (an introduced species). They have the tendency to spread and cause damage too the environment, human economy, and/or human health. The Answer to your question is No. Not every species that is introduced to a specific area is invasive. The introduced species might have a natural predator that might eat it. The species may even be biologically, chemically, or mechanically controlled. I hope this helps you out:)
6 0
3 years ago
Which minerals can scratch glass, have a non-metallic luster, and fracture?
mars1129 [50]
Feldspar and quartz are the correct answers
7 0
3 years ago
The nutritional information on a cereal box shows that one serving of a dry cereal has 200kilocalories. If one were to burn one
Gala2k [10]

<u>Answer:</u> The increase in temperature is 10°C

<u>Explanation:</u>

To calculate the change in temperature, we use the equation:

q=mc\Delta T

where,

q = heat absorbed = 200 kCal = 200,000 Cal   (Conversion factor: 1 kCal = 1000 Cal)

m = mass of water = 20 kg = 20000 g    (Conversion factor: 1 kg = 1000 g)

c = specific heat capacity of water = 1 Cal/g.°C

\Delta T = change in temperature = ?

Putting values in above equation, we get:

200,000Cal=20,000g\times 1J/g.^oC\times \Delta T\\\\\Delta T=\frac{200,000Cal}{20,000g\times 1Cal/g^oC}=10^oC

Hence, the increase in temperature is 10°C

4 0
3 years ago
Which type of pollution occurs when small particles of soil are suspended in water
Blizzard [7]

Answer:

Physical Pollution

Explanation:

Physical Pollution is the type of pollution which occurs when small particles of soil are suspended in water. The small soil particles do not mix with the water but are rather suspended thus reducing the amount of light energy availed to micro-organisms in the water.

Physical pollution is the type of pollution that is caused by color change, suspended solids, temperature conditions or radioactivity.

3 0
4 years ago
Read 2 more answers
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