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Andreas93 [3]
3 years ago
7

Some bed bugs had mutations in their genetic code which allowed them to survive the chemical pesticide and they produced chemica

lly resistant offspring. How can this be explained? A) mutations were planned out by the bugs B) bed bugs chose other bugs to partner with who had the mutation C) bed bugs chose other bugs to partner with who had no mutations D) mutations involved the genetic variation of the bugs are random
Biology
2 answers:
erica [24]3 years ago
4 0
D. Mutations involved the genetic variation of the bugs are random
amm18123 years ago
3 0

Answer:

The correct answer would be D) mutations involved the genetic variation of the bugs are random.

Mutation is defined as a permanent change in the nucleotide sequence of a genome in an organism.

Mutation can be randomly caused by DNA replication errors, exposure to carcinogenic materials or radiations, transposons et cetera. It can sometimes occur spontaneously which are termed as a spontaneous mutation.

Mutation does not always result in loss of function. It may also result in a gain of function such as resistance to any chemical.

Similarly, in bed bugs the mutations which allow their survival against chemical pesticides are random.  


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Answer:

C is the correct option.

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Suppose that tomatoes with the RR genotype are red and those with rr are green. Assuming that this reflects conventional genetic
netineya [11]

Answer:

B. R is dominant to r, and Rr individuals are red.

Explanation:

In genetics the dominant allele is represented by the uppercase letter and the recessive allele is represented by the lower case letter. A dominant allele always shows its dominance over the recessive allele. So in heterozygous condition dominant allele will reflects itself in the phenotype.

Here allele of red color allele is in capital letter and alleles of green color are shown in lower case which means R allele is the dominant allele and r is the recessive allele. Therefore R is dominant to r and in homozygous condition(Rr) red individual will be formed. So the right answer is B.

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The sequence of nitrogen bases in a strand of DNA is AGTCCG. What is the sequence for the complementary strand?
vekshin1

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O GACTTA

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........

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