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chemical mutagens
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Aspergillus flavus is a microscopic fungus that produces a toxic substance that can cause changes in the genetic material of a living liver cell What is this type of organism or substance called?
mutagen
What type of mutation occurs in reproductive cells and can be passed to offspring?
Sex cells
What are the four type of nitrogen bases?
Thymine Guanine Cytosine Adenine
Why are revertants observed in Ames test?
To determine whether whatever chemical that was introduced to the bacteria is a mutagen. More revertants means better mutagen ie. the probability of a strain reverting back to wild-type is high since probability of a mutation in the DNA is high due to induced mutation by the mutagen. Less revertants means poor mutagen ie. the probability of a strain reverting back to wild-type is low since probability of a mutation in the DNA is attributed to just the probability of an error in replication.
What type of data does the Python module Mutagen handle?
Python module Mutagen handle is a digital library. What they deal with is multimedia tagging. What this can do is detect data automatically. It's also written in different codes an example it looks like HTML.
How are X-rays a mutagen?
A mutagen is an agent that changes the genetic material (usually DNA) of a cell which leads to a change in the frequency of mutation in a cell.A cell exposed to X-ray radiation of sufficient energy is subjected to ionising radiation. Ionising radiation is capable of displacing orbital electrons from their parent atoms. Thus atoms exposed to X-rays of sufficient energy become ionised.DNA is a molecular structure. Molecules are the electrically neutral grouping of at least two atoms by a covalent chemical bond.So exposing a cell to X-ray radiation (with sufficient energy) will change the charge of the atoms of the molecules of the cell.Attacking DNA molecules in this fashion produces free radicals within the DNA molecule. Free radicals are a type of oxidising agent which is a type of mutagen that changes the DNA sequence.
What nitrogen base pair with adenine?
In DNA: Thymine pairs with Adenine. In RNA: Uracil pairs with Adenine.
What type of bound is found between adenine and thrmine?
hydrogen bond
What type of bases do adenine and guanine have?
Purine bases because they are double-ringed.
What are their nitrogenous base of RNA and DNA?
nitrogenous base in DNA are ADENINE,GUANINE,CYTOSINE AND THYMINE WHEREAS IN RNA it is ADENINE, GUANINE, CYTOSINE AND URACIL. In rna thymine is replaced by uracil.
What type of chemicals make up nitrogenous base?
Adenine, cytosine, thymine, guanine, and uracil
How many types of changes are there?
enoromous type of changes
