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nikklg [1K]
3 years ago
11

A dichotomous key is used to separate organisms into _________.

Biology
1 answer:
DedPeter [7]3 years ago
5 0
B. Subgroups
<span>When constructing a dichotomous key, the first step is to look at the group of objects or organisms and separate them into two groups based on a single distinguishing characteristic.  Then continue to separate each of the groups until each object has its own separate set of characteristics.</span>
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Consider 2 genes in peas- gene controlling seed color- yellow Vs green; gene controlling seed texture-smooth Vs wrinkled. Assume
Luden [163]

Answer:

Smooth & yellow: 9

smooth & green: 3

wrinkled & yellow: 3

wrinkled & green: 1

Explanation:

Gene controlling seed color are yellow Vs green

Gene controlling seed texture are smooth Vs wrinkled

In F1 generation, A true breeding smooth green plant (SSyy) is crossed to a true breeding wrinkled yellow (ssYY)

Off spring in F1 generation are smooth yellow (SsYy)

This means smooth texture is dominant over wrinkled texture and yellow color is dominant over green  

in F2 generation, the cross is carried between SsYy

SY         Sy        sY          sy

SY SSYY SSYy SsYY SsYy

Sy SSYy SSyy SsYy Ssyy

sY SsYY SsYy ssYY ssYy

sy SsYy Ssyy ssYy ssyy

Smooth & yellow: 9

smooth & green: 3

wrinkled & yellow: 3

wrinkled & green: 1

4 0
2 years ago
All cells have _____. (Select all that apply.) an outer membrane or plasma membrane cytoplasm a cell wall a nucleus protoplasm l
alexgriva [62]
Plasma membrane
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nucleus
protoplasm
3 0
3 years ago
Read 2 more answers
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Explanation:

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What are the strengths of someone who is said to be right brained
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Answer:

art, creativity, innovation

Explanation:

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Use the drop-down menus to complete the sentences.
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