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marin [14]
4 years ago
13

What characteristics do all organisms in the domain eukarya have in common?

Biology
1 answer:
GREYUIT [131]4 years ago
8 0
They don't have nucleus
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6.Two apparently normal parents have a daughter who suffers from agammaglobulinemia (AGG), an inherited defect of the immune sys
KATRIN_1 [288]

Answer:

See the answer below

Explanation:

For two normal parents to have produced a daughter who suffers from AGG, <u>it means the disorder is an autosomal recessive trait. In order words, it means the parents are both carrying the allele for the disorder in recessive form</u>.

Let us assume that the allele for the disorder is represented by b, meaning that the alternate form would be B. <u>Both parents will have the genotype Bb</u> and will both appear normal.

      Bb    x    Bb

    BB   Bb   Bb   bb

The affected child would be the one with bb genotype while the remaining children would appear normal. See the attached image for the Punnet's square analysis of the cross.

The genotypes of the parent would be heterozygous.

7 0
3 years ago
______ make their own food by extracting compounds from the ocean.photoautotrophs,chemoautotrophs,cyanobacteria
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<span>Both photoautotrophs and chemoautotrophs synthesize organic compounds from (inorganic) carbon dioxide, a process known as carbon fixation. Photoautotrophs get the energy to perform these reactions from light. Chemoautotrophs get it from electron donors such as hydrogen sulfide and ammonia. Cyanobacteria, by contrast, convert nitrogen from the atmosphere into ammonia, a process known as nitrogen fixation.</span>
4 0
4 years ago
Which statement describes what happens to elements during radioactive decay?
ioda

Answer:

The correct answer is option A-"They release energy".

Explanation:

The phenomenon of radioactive decay, also known as radioactivity or nuclear radiation, occurs when an unstable atomic nucleus emits radiation and loses energy and mass in the process. The elements during radioactive decay release energy and mass trying to reach a stable form. The material that has the unstable nucleus is considered radioactive.

7 0
3 years ago
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At the end of meiosis 1 how many cells are there
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