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steposvetlana [31]
3 years ago
7

Mutagens are chemical or physical agents that can alter the structure or sequence of DNA, causing mutations. Which of these is a

CHEMICAL mutagen?
A) heat
B) X-Rays
C) UV-Radiation
D) carcongian
Biology
2 answers:
vova2212 [387]3 years ago
5 0
D). Carcinogens are chemical factors in an organism's environment that can cause spontaneous mutation.
mariarad [96]3 years ago
4 0

Answer: D) carcinogens

Explanation:

Mutagen is a chemical or physical agent which is capable enough to change the genetic make up of the organism hence, result in mutation. The mutagen can be in the form of radiation such as X-rays, UV rays, heat or chemical substances. The carcinogens are the chemical substances which are capable of causing mutations which are responsible for cancer.

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Answer:

Gross

Explanation:

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What is the sequence and polarity of the dna strand complementary to the strand 5' aaatgtccatgc 3'?
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DNA, or deoxyribonucleic acid, is the hereditary material in humans and almost all other organisms. Nearly every cell in a person's body has the same DNA

DNA sequencing refers to the general laboratory technique for determining the exact sequence of nucleotides, or bases, in a DNA molecule

5' AAATGTCCATGC 3'

3' -TTACAGGTACG -5'   is the sequence and polarity of the dna strand complementary to the strand 5' aaatgtccatgc 3'.

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4 0
2 years ago
In the hypothesis that C. stellatus (a species of barnacle) is competitively excluded from the lower intertidal zone by B. balan
lord [1]
<h2>Competitive exclusion principle.</h2>

Explanation:

The fundamental and realized niches of B. balanoides are identical, but the fundamental and realized niches of C. stellatus are different.

All the possible combination of resources and condition under which a species can grow, survive and reproduce is called its fundamental niche. Whereas, the more limited set of resources and condition under which a species can grow, survive and reproduce in the presence of competitors and predators is termed as its realized niche.

Competitive exclusion principle states that if two competing species coexist in a stable, homogeneous environment, then they do so as a result of differentiation in their realized niche.

<em>B. balanoides</em> can use a wider range of resources than<em> C. stellatus </em>because its fundamental and realized niches are identical . Hence thrives to exclude C.stellatus.

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Integral proteins are important to maintain the strength of the cell membrane. true of false?
Gelneren [198K]

Answer:

false

Explanation:

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