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joja [24]
4 years ago
7

If the gardener grows 250 flowers from these parents how many would be expected to be red and short

Biology
1 answer:
madam [21]4 years ago
7 0
What are the genotypes for the two parents?
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Which of the following is most likely true of a core sample of old, mature soil
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The following is most likely true of a core sample of old, mature soil as D. It consists of several layers of different kinds of materials.

<h3>What is mature soil?</h3>

Soil is bodily mature while it attains a moisture stage that permits it to interrupt into clumps measuring 1–10 mm. (With a better moisture content, the soil sticks to the tillage implement; with a decrease moisture content, the soil breaks into big clumps and clods.)

A soil can not be more mature than the oldest bushes developing in it. It can not be older than the substances wherein it paperwork or the panorama on which it's far found. Soil scientists paintings with geologists to decide how vintage the panorama is, and the way lengthy the figure substances had been there.

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2 years ago
Explain how the Naked DNA exploits vector's DNA ability to make a vaccine.
mixer [17]

Answer:

DNA vaccines consist of DNA vectors or plasmids (small double-stranded DNA rings originally derived from bacteria, but unable to cause infection) into which the genes encoding one or more immunizing proteins of the infectious agent have been inserted causing the disease to be prevented.

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Vectors are the functional unit of naked DNA vaccines. Genes that encode the proteins of interest and are of bacterial origin are inserted into these vectors. Bacterial plasmids are circular DNA molecules that self-replicate extrachromosomally in bacteria. The genes encoded in these plasmids are under the control of promoters, almost always of viral origin. When a plasmid is introduced into the cell it translocates to the nucleus, where transcription of the transgene begins; the transcripts are then taken to the cytoplasm and translated there. The newly synthesized proteins are degraded in the proteasome to 8-10 amino acid peptides, which are transported to the endoplasmic reticulum. Peptides of high affinity with their respective MHC I molecule stabilize and enter the secretory pathway, thus reaching the cell surface, where they are coupled with the T-lymphocyte receptor (TcR) present on the surface of T lymphocytes cytotoxic drugs (CD8 +) to induce their activation.

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Which type of microscope would be best to use if you wanted to look at a living cell?
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