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Scilla [17]
3 years ago
7

In a tissue-culture lab, a scientist prepared somatic embryos of a banana. He wants to induce root development. Which hormone ty

pe should he apply to achieve this?
A) cytokinins
B) gibberellins
C) ethylene
Biology
2 answers:
mariarad [96]3 years ago
8 0
In a tissue-culture lab, a scientist prepared somatic embryos of a banana. He wants to induce root development. cytokinins <span>should he apply to achieve this.</span>
love history [14]3 years ago
4 0

Answer: A) cytokinins

Explanation:

Cytokinins are the class of plant growth regulating hormones. Their function in plants is to promote the cell division and differentiation in plant shoots and roots. Therefore, they help in the elongation process of the plant from both ends roots as well as shoot. They cause the expansion of the cells of plants.

On the basis of the above description, cytokinins can be used to induce root development in the tissue culture.

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Let's imagine that father's genotype is AA and mothers' genotype OO and cross them:
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Since we have information that daughter has blood group O, we can conclude that O is dominant over A and mask it. This is not true! In this case, the daughter will have blood group A.

Mother's genotype surely is OO (because O allele is recessive, so to express a recessive trait both alleles must be recessive). But, the father cannot be AA, because it must give O allele to the daughter so she can have genotype OO and blood group O. So, the father's genotype is AO.  Let's take a look at that crossing:
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