百度试题 结果1 题目During which process does crossing over occur? A. Mitosis B. Meiosis I C. Meiosis II D. Both mitosis and meiosis 相关知识点: 试题来源: 解析 B。原因:交叉互换发生在减数第一次分裂过程中,同源染色体配对时。反馈 收藏 ...
Do eggs and sperm arise by mitosis or meiosis? Mitosis happens when you want to grow, for example. You want all your new cells to have the same DNA as the previous cells. The goal ofmeiosis, however, is to produce sperm or eggs, also known as gametes. Are gametes formed through mitosis?
Which process must occur before mitosis and meiosis can occur? Does meiosis or cleavage mitosis happen first? How does synapsis occur in meiosis? Anaphase of mitosis occurs when Interphase, mitosis, and cytokinesis are the three stages of the cell cycle. Briefly describe what happens in each of...
What would happen if synapsis did not occur in meiosis? Does independent assortment occur in anaphase? If nondisjunction occurs in meiosis II, how many of the four gametes will be aneuploid? Which process must occur before mitosis and meiosis can occur?
A kinetochore is the patch of protein foundon the centromere of each chromatid. It is where the chromatids are tightly connected. When it's time, at the appropriate phase of cell division, the kinetochore's ultimate goal is move chromosomes during mitosis and meiosis. ...
Although H2B monoubiquitylation has been linked to increased transcription, transcription elongation, DNA replication, mitosis, and meiosis [64], how this histone modification and the erasing of this mark function is not well understood. InSaccharomyces cerevisiaeH2B mutant, K123R (which cannot be ubi...
When a primary germ cell gets ready to begin meiosis the DNA is first copied in the same way as it occurs for mitosis. This cell then undergoes two divisions so that each of the four final cells only has half of the original DNA....
Before mitosis can take place, what must happen? A. DNA replication must create two sets of chromosomes. B. The cytoplasm must begin to divide. C. Protein synthesis must make another set of chromosomes. D. RNA must copy DNA to make new chromosomes. In which phase of mitosis do centrosome...
Does asexual reproduction use mitosis to reproduce? Gametes are produced by Where does meiosis occur in plants? When does fertilization occur during meiosis? An aster forms during this stage of meiosis. Define in vitro fertilization What would happen if sperm and egg were produced by mitosis? How...
When does fertilization occur during meiosis? Are autosomes haploid or diploid? Meiosis produces which cell type? In prophase I of meiosis, crossing over results in [{Blank}]. Does meiosis or cleavage mitosis happen first? What happens to chromosomes during meiosis? For mitosis, meiosis I, and...