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3 years ago

Which of the following is a true statement regarding the operational definition of a gene?

Biology

1 answer:

Oduvanchick [21]3 years ago

7 0

Answer:

a. most genes encode one polypeptide and can be operationally defined by the complementation test

Explanation:

Genes are the stretch of DNA that code for specific polypeptides. In general, one gene codes for the only polypeptide.

Genes are defined by complementation tests which in turn tell if two mutations have occurred in the alleles of the same gene or different gene.

For the purpose, an organism with the homozygous genotype for one recessive mutation is crossed with an organism having the homozygous recessive genotype for another mutation.

If the two mutations are in the same gene, the progeny would show the mutant phenotype. On the other hand, if two mutations are in different genes, the progeny would exhibit normal phenotype.

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Explain the concept of natural selection.

umka21 [38]

Answer:

the process whereby organisms better adapted to their environment tend to survive and produce more offspring. The theory of its action was first fully expounded by Charles Darwin and is now believed to be the main process that brings about evolution.

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3 years ago

Lizette and her husband had her ova fertilized with his sperm in a laboratory and then implanted in her uterus. what form of ass

RideAnS [48]

In virto fertilization form of assisted reproductive technology.

<h3>IVF: Is the process painful?</h3>

It is comparable to a pap smear or even a vaginal ultrasound appointment. During this technique, an embryo transfer catheter and ultrasound guidance are used to transfer one or more embryos to the uterus. The entire operation will be visible to you on an ultrasound screen. This procedure is painless.

<h3>What distinguishes IVF from in vitro fertilization?</h3>

An IVF procedure involves surgically removing a woman's eggs from her ovaries and fertilizing them in a lab with sperm from a male partner or a sperm donor to produce embryos. (The term "in vitro" refers to the act of fertilizing an egg in a laboratory dish and is derived from the Latin meaning "in glass").

learn more about assisted reproductive technology here

<u>brainly.com/question/8636169</u>

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1 year ago

Which feature of a sandstone rock layer usually is

Zarrin [17]

Go to google.................

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3 years ago

Arrange the events taking place during transcription in order: i) The pre-RNA undergoes processing ii) RNA polymerase moves down

Anastasy [175]

Answer:

RNA polymerase binds to the promoter

Polymerase initiates RNA synthesis at the start point on the template strand

RNA polymerase moves downstream unwinding the DNA

RNA transcript is released and polymerase detaches from the DNA

The pre-RNA undergoes processing

Explanation:

The promoter is the specific DNA sequence that serves as a binding site for RNA polymerase. The enzyme RNA polymerase recognizes the promoter sequence and binds to it to begin the process of RNA synthesis. The process of RNA synthesis begins at the start site where the process of the unwinding of DNA duplex is initiated.

The unwinding separates the two DNA strands at the start site where RNA polymerase begins the process of synthesis of the new RNA strand. The newly formed RNA strand and RNA polymerase are released from the template strand after the termination of the process.

In eukaryotes, the primary RNA transcript undergoes the process of splicing of introns, the addition of poly-A tails and 5' cap which in turn transform it into the mature mRNA.

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3 years ago

You probably believe that the earth is sherical, but as we look around , certainly appears that the earth is flat. One Classmate

Iteru [2.4K]

I'm not for sure about it But i'm pretty sure it's D. Sorry if I'm wrong..

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3 years ago