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mamaluj [8]
3 years ago
9

What happens when an overgrowth of algae dies?

Biology
1 answer:
gayaneshka [121]3 years ago
7 0
More oxygen becomes available in the water helping the marine or freshwater creatures live. <span />
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it should be sugar for what nucleotides contains

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Plants take in the sun's energy by absorbing Select one: a. high-energy sugars. b. chlorophyll a. c. chlorophyll b. d. sunlight.
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Which statement correctly uses the model above to explain how mitosis maintains genetic continuity? A. The chromosomes in cell 1
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Choose all the answers that apply.
arlik [135]

Answer:

Option A, B, and C are correct

Explanation:

Incomplete dominance means that the trait represented by two alleles expresses themselves equally thereby hindering dominance of any of the allele completely.

Now,

Let us assume the allele of red petals be represented by "R" and the allele of white petals be represented by "r"

The pink flowers will have genotype "Rr"

Now if two pink flowers are crossed, the following offsprings are produced

Rr X Rr

RR, Rr, Rr, rr

Let us evaluate all the options one by one

a) Ration of pink flower to red flower ( Rr:RR)

There are 2 pink (Rr) flower and 1 Red (RR) , thus the ration of pink flower to red flower is 2:1. Option A is correct

b) one out of four offspring is white in color, therefore the % of white flower is

\frac{1}{4} * 100\\= 25\\%. Option B is correct

c) Two pairs RR and rr are homozygous, thus out of four offsprings two are homozygous. Therefore %of homozygous flowers will be

\frac{2}{4} * 100\\= 50\\%. Option C is correct

d) There are two heterozygous offsprings i.e Rr, therefore the % of heterozygous is \frac{2}{4} * 100\\= 50\\%. Option D is incorrect

e) half of the flowers are hybrid. Therefore option e is incorrect

Therefore, Option A, B, and C are correct

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