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alex41 [277]
3 years ago
15

You have isolated a new mutation in the T4 bacteriophage rII A gene and you map its location within the gene by recombination fr

equency. You find that this new mutation fails to give wild type recombinants with several different adjacent mutations located in the same gene. What type of mutation is this new one you just isolated
Biology
1 answer:
pantera1 [17]3 years ago
5 0

Answer:

A lethal mutation, thereby the resulting phenotype is not observed .

Explanation:

Lethal mutations are the result of genomic changes that may be lethal in certain conditions. In genetic research, this type of mutation has shown to be very useful in analyzing gene function (i.e., genes whose protein products are key for the survival of the organism in question), and they are perfect gene markers. In bacteriophages, for example, temperature-sensitive mutants of phage T4 that can not grow at temperatures higher 42°C have been identified (Edgar & Lielausis 1964).

Citation:

R. S. Edgar, & I. Lielausis (1964). Temperature-sensitive mutants of bacteriophage T4D: their isolation and genetic characterization. Genetics, 49(4), 649.

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Match the mountain range with its formation. 1. Appalachian 2. North American Cordillera 3. Aleutian 4. Andes A. Two continents
melisa1 [442]

Appalachian: A. Two continents colliding.


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North American Cordillera: B. Terrane accretion


These form when two continents that collided bonded so tight that it forms a permanent land mass. If the continents would pull away from each other, the terrane stays intact.


Aleutian plate: D. Oceanic convergence


This is a type of convergence where one plate subducts beneath another plate. Between the two, the older plate is usually the one that subducts because it is usually more dense.


Andes mountain range: C. An oceanic plate and continental plate colliding.


In the collision between an oceanic and continental plate, the thinner and more dense oceanic plate subducts under the continental plate. The Andes mountain range was formed by the subduction of the Nazca Plate beneath the South american Plate.


3 0
3 years ago
Read 2 more answers
Cell cycle checkpoints are an important feature of a dividing cell to reduce errors that can occur in various stages of the cell
saveliy_v [14]

Loss of Rb, an important part of the G1-S transition checkpoint, can result in uncontrolled cell cycle progression and cancer. All of the following would mimic loss of Rb except constitutively active Ras GTPase activating protein. Correct answer: letter E.

Constitutively active Ras GTPase activating protein would not mimic loss of Rb, because it would not directly result in uncontrolled cell cycle progression.

<h3>What is Retinoblastoma (RB)?</h3>

Rb is an important tumor suppressor protein that works to inhibit cell cycle progression by preventing the activation of E2F transcription factors. Constitutively active Ras GTPase activating protein would not directly interfere with the Rb-E2F pathway, which is necessary for uncontrolled cell cycle progression and cancer.

Learn more about the cell cycle:

brainly.com/question/2457509

#SPJ4

4 0
1 year ago
Scientists want to determine how closely related chimpanzees are to humans. Which data would give the MOST accurate comparison?
ipn [44]

The correct answer is option B) their DNA sequences.

The best comparison for finding out the evolutionary relationship between two organism is the comparison of their DNA (deoxyribonucleic acid) sequence. The organisms, which are more closely related to one another share more similarity in the DNA sequence as compared to the distantly related organism, so, the comparison of the DNA can help in determining the evolutionary relationship between the organism.

5 0
3 years ago
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Which layer in Figure 4-1 forms the cap rock for the oil trap?
aleksklad [387]
I am pretty sure that the layer in figure 4-1 which forms the cap rock for the oil trap is the layer  F that shows an example of stratigraphic traps that includes unconformity, lens, pinch-out in which you can see how t<span>he oil is stuck inside the porosity of the rocks. 
Do hope you will find it helpful! Regards.</span>
8 0
4 years ago
Which is considered an oxidizing mutagenic agent
valina [46]
The answer to your question is

x-rays
3 0
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