Complete question:
Prophase of meiosis I has some important differences from prophase of mitosis. These differences include: ___________BLANK pair, and _________BLANK occurs.
A: chromatids; condensation
B.,chromosomes; separation
C. homologous chromosomes; crossing over
D. homologous chromatids; separation
Answer:
C. homologous chromosomes; crossing over
Explanation:
Prophase I of meiosis and prophase of mitosis are quite distinct with respect to the events occurring in the cells. Prophase-I of meiosis is a relatively long stage. The Zygotene stage of prophase-I includes the pairing of homologous chromosomes. This pairing is mediated by synaptonemal complex and the process is called synapsis. The paired chromosomes undergo the process of crossing over during the pachytene stage of prophase-I. In crossing over, the non-sister chromatids of the bivalents exchange some genetic material between them. The events of synapsis and crossing over do not occur during prophase of mitosis.
<span>The best possible approach for a nurse to use when beginning the preoperative interview would be to walk into the room of the patient, sit down with the patient, make sure to have eye contact when speaking to the patient, and make a polite and friendly yet professional introduction.</span>
The Ovaries produce hormones, that trigger menstruation. They also release one egg each month for possible fertilization.
<h2>Answer:</h2>
The two important uses of biotechnology is the gene therapy and Genetic engineering.
<h3>Explanation:</h3>
- Gene therapy is the manipulation of genes in the genetic make up of an individual to eradicate the inheritable genetic disorders.
- The second use is the genetic engineering. Which is the genetic changes of an organism or micro organism to produce a desirable product.
- For example the transfer of human gene into bacteria for the production of insulin.
- Biotechnology is also used in the diagnostic techniques of genetic disorders.
