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mixas84 [53]
3 years ago
15

Are small DNA fragments that occur in many bacterial cells?

Biology
1 answer:
Alinara [238K]3 years ago
7 0
Plasmids are small DNA fragments that occur in many bacterial cells.
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3 years ago
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What does it mean when a biologist uses the term crossing-over? why is crossing over a good thing?
igor_vitrenko [27]
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8 0
3 years ago
launchpad A Drosophila mutation called singed (s) causes the bristles to be bent and misshapen. A mutation called purple (p) cau
storchak [24]

Answer:

ppss and PPSS

Explanation:

Just as indicated in the question above, Flies homozygous for singed and purple were crossed with flies that were homozygous for normal bristles and red eyes.

And a Drosophila mutation called singed (s) causes the bristles to be bent and misshapen.

A mutation called purple (p) causes the fly’s eyes to be purple in color instead of the normal red.

Thus, the genotypes of the parental flies in Cross 1 are

PPSS and ppss

7 0
2 years ago
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