11. Selecting specific traits to create a new breed of an animal would be an

Chemistry

1 answer:

Lynna [10]3 years ago

7 0

Selective breeding

The Alleles

DNA

X and Y chromosome from mother and father

Nucleus

Gene

<u>Explanation:</u>

In selective breeding, a specific trait of the animal is considered and the gene coding for that trait is used to create new breeds. Example - cow producing lot of milk.

Genotypes are always expressed by the alleles.
Example - Genotype of Tall plants would be TT or Tt

Information is passed from parents to offsprings from the information stored in DNA.
A gender of an individual is determined by the x chromosomes of mother and X and Y chromosome of father.
X chromosome from mother and X chromosome from father would form a female and X chromosome from mother and Y chromosome from father would form a male.
DNA is located inside the nucleus of the cell
Gene is the segment of chromosome that codes for a specific protein. The non coding segment of chromososme is heterochromatin.

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which of the following best helps explain why an increase in temperature increases the rate of a chemical reaction?

NeTakaya

The given question is incomplete. The complete question is as follows.

Which of the following best helps explain why an increase in temperature increases the rate of a chemical reaction?

(a) at higher temperatures, high-energy collisions happen less frequently.

(b) at low temperatures, low-energy collisions happen more frequently.

(c) at higher temperatures, less-energy collisions happen less frequently.

(d) at higher temperatures, high-energy collisions happen more frequently

Explanation:

When we increase the temperature of a chemical reaction then molecules of the reactant species tend to gain kinetic energy. As a result, they come into motion which leads to more number of collisions within the molecules.

Therefore, chemical reaction will take less amount of time in order to reach its end point. This means that there will occur an increase in rate of reaction.

Thus, we can conclude that the statement at higher temperatures, high-energy collisions happen more frequently, best explains why an increase in temperature increases the rate of a chemical reaction.

6 0

3 years ago

When a reaction has reached equilibrium... A. Q = K B. The rate of the forward reaction and the rate of the reverse reaction are

grin007 [14]

Answer:

The correct answer is option A.

Explanation:

Equilibrium is a state when rate of forward reaction is equal to the rate of backward reaction. The concentration of reactants and products becomes constant at this state.

The ratio of concentration of products to the concentration of reactants each raised to the power their stoichiometric coefficients is termed as Equilibrium constant. It is denoted by $K_{eq}$ .