28 Which of the following best illustrates totipotency? A A A somatic cell isolated from a root tip develops into a normal adult plant. B Stem cells are able to divide indefinitely. C Mesenchymal stem cells can differentiate into an extensive range of cell types,including bone cells, ...
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A.The affinity mutation of antibody is mainly the result of somatic hypermutation and selection in the geminal center. B.Class switching allows the selected B cells to produce antibodies with a variety of effector functions. C.Follicular dendritic cells and T follicular helpers are important for B...
a那么看来在这方面我们观点不一致 Then looked like we the viewpoint is inconsistent in this aspect[translate] aprotein level in testicular somatic cells in which the promoter of the gene was found to be active. 蛋白质水平在基因促进者被发现活跃的睾丸体细胞。[translate]...
Which of the following is the part of the brain which produces emotions? A) Thalamus B) Hypothalamus C) Limbic system D) Pineal gland The Brain The brain is the most amazing and complicated organ of the body. It has been divided int...
Answer to: Which of the following options is correct? The light band of a skeletal muscle is known as the a. A band. b. Z disc. c. I band. d. H...
ato pachytene spermatocytes, but the PCR-2 transcripts were expressed from postnatal day 8, at which time the majority of testicular cells are somatic cells. 到粗线期精母细胞,但PCR-2抄本从出生后天8被表达了,那时多数睾丸细胞是体细胞。[translate]...
- Haploid cells contain one set of chromosomes (n), while diploid cells contain two sets (2n). In humans, haploid cells are typically gametes (sperm and eggs), whereas diploid cells are somatic cells. 2. Analyzing the Options: - A. Spermatogonial cells: These are diploid (2n) cells found...
Which of the following options is correct? The cardiovascular center is located in the A. hypothalamus. B. thalamus. C. pons. D. midbrain. E. medulla oblongata. Cardiovascular center: The cardiovascular center is re...
Mitosis is considered an “equational” form of cell division — it occurs in cells that do not produce gametes (e.g., somatic cells). During mitosis, a cell divides once to produce two daughter cells with genetic material identical to that of the original parent cell and to each other. ...