To have an accurate result for this experiment, it is best for the scientist to be able to find or devise an appropriate methodology coupled with the most accurate tools or equipment. When data are properly gathered, it is easier for the scientist to interpret and give conclusion/recommendations.
Answer:
- <u>Option:(1)-</u>The <u>Genetic drift </u>theory is an evolutionary concept that suggests that behaviors that help an organism survive are passed on while weak behaviors are lost.
Explanation:
According to this theory, an organisms faces different levels or kinds of environmental factors, which either suppresses or increases the level of a certain allele frequency inside an organisms genetic sequence, which then results in the change in behavior of that organism. And through many generations the changes in behavior may pass on from one to another, as the changes does not occur in a single generation.But, the alleles frequency are suppressed and increased with time, when they face different environmental factors or situations.
Explanation:
The products in a reaction are the species on the right hand side of a chemical equation.
The reactants are the species on the left hand side of the equation.
A + B ⇒ C+ D
The reactants A and B, products are C and D.
Reactants are the species combining together.
The products are the results of the combination.
Types of chemical reactions;
Combination or synthesis; in this type of reaction, two species combines to give a product or products:
A + B ⇒ C+ D
Decomposition or cracking: a specie breaks down into one or more products:
A ⇒ B + C
Single displacement: one specie replaces another in a reaction:
A + CD ⇒ AC + D
Double displacement: species replaces another in a reaction:
AC + BD ⇒ AD + BC
learn more:
Chemical reactions brainly.com/question/3953793
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Answer:
Semi-conservative
Explanation:
Meselson–Stahl experiment proved that DNA replication is a semiconservative process, feeding E. colo bacteria with different types of Nitrogen isotopes (N14 and N15).
Changing the type of radioactive compound in different times of bacteria grow, they could observe that both of the isotopes were present on the bacteria culture.
Basically, if the bacteria present both of them, the DNA was replicated semiconcervely.
Guess what? they show both! (See the image for more information)