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Reptile [31]
3 years ago
5

Name a serious disease caused by protozoa​

Biology
1 answer:
andrew11 [14]3 years ago
7 0

Answer:

African sleeping sickness is caused by protozoa in the Trypanosoma genus. These organisms are carried by the tsetse fly and transmitted to humans via tsetse fly bites. According to the World Health Organization, Trypanosoma brucei gambiense causes more than 90 percent of African sleeping sickness cases.

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What is smaller a cell or a macromolecule
Allushta [10]
Macromolecule is larger than a cell.
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Colored aleurone in the kernels of corn is due to the dominant allele R. The recessive allele r, when homozygous, produces color
Pie

Answer:

The genes are linked, and the arrangement is coupled (one homolog has both dominant alleles; the other homolog has both recessive alleles).

RY / ry

Explanation:

R_= colored aleurone

rr= colorless aeurone

Y_= green plant

yy= yellow plant

They do a testcross between a plant of unknown genotype and phenotype and a plant that is homozygous recessive for both traits (yr/yr) the following F1 is obtained:

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  • 12 colored, yellow (Ry/ry)

If the genes assorted independently, all of the possible offspring phenotypes would appear in the same frequency. However, they obtained 2 phenotypes much more abundant that the other two. Since recombination is a rare event during crossing over, when two genes are linked the recombinant gametes are produced less frequently than the parentals.

We can propose that the phenotypes Colored, green (RY) and colorless yellow (ry) are the parental gametes, and the unknown plant has the arrangement RY/ry, with both genes linked.

6 0
3 years ago
Will give most brainliest and thanks with five star if answered this question correctely Why must a cell grow and duplicate its
const2013 [10]

Answer: Because two or more daughter cells will be formed, and each must have the parent chromosome in itself

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Cell undergo cell division (mitosis or meiosis) as part of healthy development of a living organism. Before division, the cell during the resting phase( Interphase) makes two copies of all its organelles including nucleus, as it would form two daughter cells (in mitosis) or four daughter cells (in meiosis)

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Are all these forces balanced or unbalanced?
andreev551 [17]

Answer:

Balanced

Explanation:

Both forces add up to 380N.

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Which of these is part of the biosphere? Wind? Lakes? Bacteria? Glaciers?
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Includes all of the living organisms on earth so it should be glaciers
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