Answer:
The correct answer is option C.
Explanation:
Before meiosis, DNA that is stacked into chromosomes must replicate. Before replication, the sex cell has two copies of each chromosome, one from mother, and one from father.
DNA replication takes place in the same manner as it does during mitosis. After the chromosome replication, the homologs are double in number, and each chromosome now has a homologous pair of chromosomes.
Thus, the correct answer is option C.
Answer: A.
Explanation: Scientists think that geographic isolation is a common way for the process of speciation to begin: rivers change course, mountains rise, continents drift, organisms migrate, and what was once a continuous population is divided into two or more smaller populations.
<span>Lipogenesis.
The root words that make up the word lipogenesis can help in remembering what it does. Lipo-"fat" from Greek origin, and genesis-"origin or production" also from Greek origin. So when the body is producing fats it can be associated with lipogenesis, just by the etymology of the word.</span>
