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Nesterboy [21]
3 years ago
7

What causes plants to respond positively to sunlight?

Biology
2 answers:
Vikki [24]3 years ago
7 0
<span>Auxin. Cells on the plant that are farthest from a light source have a chemical called auxin cause the cells to elongate. The plant bends towards the light. </span>
Vanyuwa [196]3 years ago
3 0
Auxin causes plants to respond positively to sunlight because these are chemicals in plants that are far from a light resource, which causes the plant to bend towards the sun.<span />
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What astronomers thought epicycles were correct?
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If an electron Is gained, the atom has a ___ charge.
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negative

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3 years ago
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You want to identify dominant /recessive relationship for skin color for a new frog species that you found in the rain forest. A
noname [10]

Answer:

bright blue trait = recessive

yellow trait = dominant

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let the letter B represent the gene for skin colour.

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In order to find out the genotype of the parents, let us consider each cross one after the other.

1. A bright blue female and a bright blue male produce all blue progeny.

2. A yellow female and a yellow male produce a mix of both bright blue and yellow progeny

From statement 2, it can be deduced that the trait for yellow colour is dominant because a cross of the parents exhibiting this trait produces bright blue offsprings too, meaning that the genetic composition of the parents contains the gene that codes for yellow colour. Since these parents show a yellow colour in a heterozygous state, then the trait for yellow colour is dominant.

Therefore, the genotypes of the parents in each case include:

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2. A yellow female and a yellow male produce a mix of both bright blue and yellow progeny (Bb × Bb)

6 0
2 years ago
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