BIOLOGY COLLEGE

Phenacetin can be made using either the Williamson ether synthesis or the amide synthesis.a. True
b. False

Answers

Answer 1
Answer:

Answer:

True

Explanation:

Phnacetin can be produced using Williamson-ether synthesis. In this, phenacetin is derived from acetaminophen and the reaction involve interaction of alkoxide or phenoxide with a methyl or primary alkyl halide

In amide synthesis mechanism, acetic anhydride and phenetidine (p-ethoxyaniline)  react to phenacetin through a  nucleophilic acyl substitution

Hence, the given statement is true

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Which molecule could he make that consist of long chains of red and black colored balls

Answers

Answer:

The red balls here refers to the hydrogen and black balls refers to carbon.

You work in a laboratory that studies the molecular biology of tribbles. [Although tribbles are an alien life form, assume here that the molecular biology of tribbles is identical to that of eukaryotes on Earth.]Your lab has a genomic library of tribble DNA, as well as a cDNA library made with mRNA extracted from whole tribbles. The lab also has a collection of live tribbles that can be used to isolate RNA or DNA, and a supply of fixed tribbles that can be stained for gene expression.Your advisor provides you with a cloned 100 bp DNA fragment that represents part of the protein-coding region of a tribble gene. Using the tools described in the previous paragraph and the molecular biology techniques we have discussed in class, how would you accomplish each of the following aims? Note: try to come up with the simplest and modest direct approach that will give you the desired information.A. Determine the amino acid sequence of the complete protein produced by that gene.B. Determine whether or not the gene contains introns.C. Determine whether the RNA produced by that gene experiences alternative splicing.D. Determine the length of the mature mRNA(s) produced by the gene. This includes the UTRs and the poly-A tail.E. Determine which cells in the tribble body do and do not express mRNA from this gene.F. You discover a blood stain in the lab, and you want to determine whether it is human blood or tribble blood. How can you do this using the molecular biology tools described above?

Answers

Answer:

Explanation:

A) to determine amino acid sequence of the protein produced by that gene. We will use cDNA library, we will hybridize given part of DNA sequence ( as this part only contains exon part). Than we will isolate the hybridize part and translate this sequence using generic coding table.

B) for determine presence or absence of introns in gene used isolated cDNA in first question. Now we will add this cDNA to DNA library. Here cDNA due to complementary mature binds with DNA. If cDNA binds completely with gene with out looping part of gene it shows that gene is having only exons .

And if along with hybridization part some looped part present in between-- it shows both exons and intron are present.

C) for determining alternative splicing we will use cDNA library.

d) to determine length of mature mRNA which includes both the UTR and poly A sequence we will go for cDNA cloning and look for particular cDNA complementary to DNA segments. And later we isolate that cDNA and examine its whole length

E) to determine which cells in the tribble body express this particular mRNA . We use fluorescent tagged small DNA part provided. Then we will add this DNA probe to supplied tribes. The cells which are expressing , will have cDNA will bind to probe and florescent can be detected. Cells which are not expressing that gene, here probe will not bind and no fluorescence.  

F) to determine that whose blood strain is this. We will do VBTR profiling . Which VNTR profiling similar to belief stain help to determine which blood stain is this.

I need the answers to this question super quick!! Thank yoh

Answers

Answer:

They are "anti" condons or "stop" condons

Explanation:

What is this bug called?

Answers

Answer:

ASSASSIN BUG  

The only cells that are capable of photosynthesis are the ones that contain

Answers

The process of photosynthesis requires water, carbon dioxide, sunlight and chlorophyll. The only cells that are capable of photosynthesis are the ones that contain chloroplast.

What is plastid?

Plastids are cell organelles that are double membrane and generally found in plants and algae.

There are three types of plastids, namely

  • Chloroplast which have chlorophyll.
  • Chromoplast also have some pigmants.
  • Leucoplast used for storage.

The cell that have chloroplast can perform photosynthesis, because it is the chlorophyll that enables this process by absorbing sunlight.

Thus, the only cells that are capable of photosynthesis are the ones that contain chloroplast.

For more details regarding plastids, visit:

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Chloroplasts are organelles found in plant cells and eukaryotic algae that conduct photosynthesis. Chloroplasts absorb sunlight and use it in conjunction with water and carbon dioxide gas to produce food for the plant.

Give an example of each non-mendelian mode of inheritance.

Answers

Non-Mendelian inheritance is any pattern of inheritance in which traits do not segregate in accordance with Mendel's laws. These laws describe the inheritance of traits linked to single genes on chromosomes in the nucleus. In Mendelian inheritance, each parent contributes one of two possible alleles for a trait.
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