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Molodets [167]
2 years ago
9

Write the reason why starch test shows blue-black color.​

Biology
1 answer:
Ronch [10]2 years ago
6 0

Answer: Amylose in starch is responsible for the formation of a deep blue color in the presence of iodine.

Explanation :The iodine molecule slips inside of the amylose coil.n This makes a linear triiodide ion complex with is soluble that slips into the coil of the starch causing an intense blue-black color.

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4 0
3 years ago
In a field of sunflower plants, 776 plants are tall and 224 plants are short. Sunflower height follows the normal pattern of inh
Nitella [24]

Answer:

The correct answer would be D) tt.

Recessive traits need a homozygous condition to get expressed and to produce a particular phenotype. In contrast, dominant trait can be expressed  in homozygous as well as heterozygous condition of the alleles of a gene.

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Thus, the genotype of all the short plants in the field should be tt and the genotype of the tall plants would be TT or Tt.

4 0
3 years ago
Read 2 more answers
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