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beks73 [17]
2 years ago
11

Assertion: Gene mutation is the basis of evolutionary genetic change.

Biology
1 answer:
Deffense [45]2 years ago
6 0

In conclusion, Both 'mutation is the basis of evolutionary genetic change' and 'mutations prevent the proper functioning of a gene' are True, but R is not the correct explanation of A (Option A).

<h3>What are genetic mutations?</h3>

Genetic mutations are any type of modification in the genetic material (DNA sequence) of an organism.

Mutations provide the raw material for evolution, but mutation can be beneficial, deleterious, or neutral depending on the environment.

In conclusion, both statements are True, but R is not the correct explanation of A (Option A).

Learn more about mutations here:

brainly.com/question/17031191

#SPJ1

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What organisms break down the nitrogen compounds in dead plants,dead animals,and animal waste
laiz [17]

These would be the decomposers - bacteria and fungi.

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How would your life change if I stopped using plastic? Use your brain and imagine.
larisa [96]
There would be less pollution. It wouldn’t be as many toxins in the air.
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You are testing a chemical that you suspect is a mutagen. You set up an AMES test, and for your control (without the mutagen add
Reptile [31]
<h2>Mutagenic characteristic of chemical</h2>

Explanation:

  • The earth we live in really affects whether we experience hereditary transformations. The nature of water we drink and the air we inhale can really influence the uprightness of our DNA. Our bodies are intended to address any slip-ups, however, risks from the earth can expand our odds of winding up with a change. A natural operator that causes a transformation is known as a mutagen
  • chemical mutagens are standard instruments for mutagenesis in a variety of living things, and they are a fundamental strategy for making changes in phenotype-based screens in most genetic structures. Although in the exploratory arrangement, all whole animal screens incorporate the time of lines harboring transformed chromosomes followed by the examination of the consequent phenotypes in the heterozygous or homozygous state
  • Hence, the right answer is "chemical is not mutagenic in nature"

3 0
4 years ago
If two traits among flowers, dwarfism and stem color, were on the same pair of chromosomes, would you expect an F2 generation of
sammy [17]

Answer:

Yes, there will still be a chance for the F2 generation to have a ratio 9:3:3:1

Explanation:

According to Mendel's law of segregation, alleles of a gene pair separate at the time of game formation.

According to the Law of independence, the alleles sort independently into the gametes.

Even if the two traits under study are located on the same chromosome, they will segregate and assort independently at the time of gamete formation.

Also, at the time of meiosis, one of the alleles will arise from each parent hence there will still be a chance for the F2 generation to have a 9:3:3:1 ratio.

6 0
4 years ago
Steps in protein synthesis Step order : initiation complex formed with addition of large ribosomal subunit translocation small r
Alina [70]

Answer:

1. transcription of mRNA from DNA

2. small ribosomal subunit binds to mRNA

3.initiation complex formed with addition of large ribosomal subunit

4.codon recognition (non-initiating site)

5.peptide bond formation

6.translocation

7. ribosome reads a stop codon

8.polypeptide chain is released from the P site

9. ribosomal subunits dissociate

Explanation:

The translation is a process which translates the nitrogenous bases or codons in the proteins.

The process of translation requires the mRNA, tRNA and ribosome and proceeds in three stages: the initiation, elongation and the termination.

The process begins with the binding of the small subunit of the ribosome to the mRNA. The charged tRNA with a first amino acid called methionine binds the mRNA and scans the mRNA until it finds the start codon.  

After it finds the start codon, the large subunit complex binds the mRNA and form initiation complex. After this, the amino acid enters the P-site of the ribosome where elongation of peptide takes place.

The peptide then exits from the E-site and the ribosome dissociates.

7 0
3 years ago
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