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Ne4ueva [31]
3 years ago
10

The independent is which of the following: A. What is measured B. What is changed by the researcher

Biology
1 answer:
Illusion [34]3 years ago
4 0

Answer:

B

Explanation:

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Answer:

Q2->They all form acids when combined with hydrogen. They are all fairly toxic. They readily combine with metals to form salts.

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Explanation:

6 0
2 years ago
The process where severe droughts cause some lands to become deserts is called __(blank)__ pls help and ty! :))
Naddika [18.5K]

Answer:

Desertification

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3 0
3 years ago
Suppose we were successful in identifying 12 mutants using a screen for identifying conditional mutants of S. cerevisiae in whic
Marina CMI [18]

Answer:

Each mutant would be mated to wild type and to every other mutant to create diploid strains. The diploids would be assayed for growth at permissive and restrictive temperature. Diploids formed by mating a mutant to a wild type that can grow at restrictive temperatures identify the mutation as recessive. Only recessive mutations can be studied using complementation analysis. Diploids formed by mating two recessive mutants identify mutations in the same gene if the diploid cannot grow at restrictive temperature (non-complementation), and they identify mutations in different genes if the diploids can grow at restrictive temperature (complementation).

Explanation:

Recessive mutations are those whose phenotypic effects are only visible in homo-zygous individuals. Moreover, a complementation test is a genetic technique used to determine if two different mutations associated with a phenotype colocalize in the same <em>locus</em> (i.e., they are alleles of the same gene) or affect two different <em>loci</em>.  In diploid (2n) organisms, this test is performed by crossing two homo-zygous recessive mutants and then observing whether offspring have the wild-type phenotype. When two different recessive mutations localize in different <em>loci</em>, they can be considered as 'complementary' since the heterozygote condition may rescue the function lost in homo-zygous recessive mutants. In consequence, when two recessive mutations are combined in the same genetic background (i.e., in the same individual) and they produce the same phenotype, it is possible to determine that both mutations are alleles of the same gene/<em>locus</em>.

5 0
2 years ago
Genetic and chemical modifications are often performed on antimicrobial drugs. Which of the following statements explains the ad
kiruha [24]

Answer:

A. Chemical modification may allow for extended drug capacities such as expanded spectrum of activity and increased stability.

Explanation:

Any modification in antibiotic structure and chemical will affects its ability in a way to increase it capability of target microbes and act efficiently. These modification can increase half life and stability of the drug.  

8 0
2 years ago
What step in the water cycle moves water from ponds and lakes into the air Afreezing B condensation cevaporation dmelting
densk [106]

Answer:

Water from ponds and lakes is moved into the air during evaporation. During the process of evaporation, water changes from a liquid (water) to a gas (water vapor).

Explanation:

that is the correct answer

4 0
3 years ago
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