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zzz [600]
3 years ago
9

The iodine changes color in the presence of

Biology
2 answers:
elena-14-01-66 [18.8K]3 years ago
8 0
The answer will be starch :)





                                                  

dem82 [27]3 years ago
3 0

Answer: A starch

Explanation:

Many food products contain a carbohydrate that is called as starch like rice, corn, potatoes, pasta and grains. Iodine solutions can be used for testing the food samples that are expected to consist of starch. In the presence of starch the iodine solution changes it's color from brown to blue-black to purple. This solution is a reliable source of identification of starch.

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Consider 2 genes in peas- gene controlling seed color- yellow Vs green; gene controlling seed texture-smooth Vs wrinkled. Assume
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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
3 years ago
Which of the following best explains why enzymes are necessary for many cellular reactions?
kow [346]

Answer:

C. The reactions take up too much space in the cell if the enzymes are missing.

Explanation:

6 0
3 years ago
How do neurons work?
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I want to know why I got this question wrong, I answered Transcription
NeX [460]
It is translation. Transcription is from DNA to RNA and Translation is from RNA to proteins
4 0
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The sequence of ________________ in a DNA molecule determines the protein that will be produced.
alexandr402 [8]

Answer:

B) Nucleotides

Explanation:

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