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NARA [144]
3 years ago
10

How did more sophisticated microscope have allowed scientists to advance their knowledge of cells?

Biology
1 answer:
vazorg [7]3 years ago
7 0
<span>because they have an enhanced sight due to the amount of magnification and objective lens</span>
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What of the following happens first?
AfilCa [17]

Answer:

A

Explanation:

A because the introns are edited then linked together by nucleotides

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3 years ago
Where do the light dependent reactions take place?
weqwewe [10]

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Explanation: which is placed in chloroplast... And chloroplast is in plants and they can use light to produce glucose.

4 0
4 years ago
Suppose we were successful in identifying 12 mutants using a screen for identifying conditional mutants of S. cerevisiae in whic
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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
3 years ago
Why are dominant alleles not necessarily more common than recessive alleles?
marta [7]
It all depends on the trait. If the dominant is more common that the recessive trait then it is more likely to a dominant trait in the gene pool. But if the recessive trait is more common in the gene pool then you will have a recessive trait. Does this make sense? Let me know if I'm right!
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3 years ago
An amino acid is synthesized by the prokaryote, E. coli. The genes for the enzymes are responsible for synthesizing this amino a
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