Ans.
The process that involves exchange of genetic material between homologous chromosomes, is known as crossing over. It occurs during meiosis I (between prophase I and metaphase I).
Crossing over is responsible for the variation in organisms as it makes new genetic combinations in the offspring that are absent in either parents and thus, contribute to genetic diversity.
Thus, the correct answer is 'crossing over.'
ribogenome
B.
riboamino acid
deoxygenome
deoxyamino acid
deoxyribonucleotide
deoxyribonucleic acid
C.
riboamino acid
D.
ribonucleic acid
Answer:
Explanation:
riboamino acid
B.The oxygen end of the molecule has a partial negative charge and the hydrogen end has a partial positive charge.
C.Both ends of the molecule have a partial negative charge, which attracts the other water molecule towards itself.
b. monomer.
c. disaccharide.
d. polysaccharide.
Why does changing the pH of a solution affect the ability of an enzyme to catalyze a chemical reaction?
a. It destroys the substrate.
b. It changes the shape of the protein.
c. It breaks the protein into its monomers.
d. It raises the temperature of the solution.
Answer:
b w e q k
Explanation:
2 answer
Answer: B, W, E, Q, K
Explanation:
b. Fossils are discovered that show gradual changes in the physical characteristics of a species over time.
c. Analogous structures, like bird and bat wings, show us that these organisms inherited wings from a recent common ancestor.
d. DNA of organisms that are theorized to be closely related often shares a lot of similarities.
Answer:
a
Explanation: