6. 句子需要询问“星期四早上做什么”,因此用“What do you have”来表达,并加上时间状语“on Thursday morning”。 7. 句子描述“周末洗衣服和玩运动”,因此用“I wash my clothes and play sports”来表达,并加上时间状语“on the weekend”。反馈 收藏 ...
Describe the activity of chromosomes in each stage of meiosis 1 and meiosis 2. How does the number of chromosomes in a parent cell compare with the number of chromosomes in a daughter cell? Why is this important? Explain the difference between chromatins and chromatids, and what part of...
This DNA-protein complex is called chromatin, wherein the mass of protein and nucleic acid is nearly equal. Within cells, chromatin usually folds into characteristic formations called chromosomes. Each chromosome contains a single double-stranded piece of DNA along with the aforementioned packaging ...
Step-by-Step Solution:1. Understanding Meiosis: Meiosis consists of two main stages: Meiosis I and Meiosis II. Each of these stages has several phases, including prophase, metaphase, anaphase, and telophase.
If a cell has 30 chromosomes before mitosis, how many does each daughter cell have afterward? How many chromosomes do primates have? How many chromosomes are in a cell at the beginning of meiosis? A horse has 32 chromosomes in all of its body cells. How ma...
Fig. 1: Sex chromosomes of platyhelminths and nematodes. aGenomic and transcriptomic data used in this study. We obtained available genomic and transcriptomic sequences for a total of 13 platyhelminths species and 41 nematode species, along with information about the sex of each sample.bExamples...
A、metaphase B、anaphase C、prophase D、synapsis E、none of the above暂无答案更多“Chromosomes become visible during mitotic phase of ___.”相关的问题 第1题 The first stage of mitosis is p___. During this stage, individual chromosomes become visible. 点击查看答案 第2题 mitotic apparatus...
Consequently, although all the cells of a multicellular organism have an identical set of genes arranged linearly on each chromosome, the set of chromosome regions that are active and inactive in RNA synthesis differs in each type of cell and at each stage of development. That is, the same ...
addition, a transient increase in free Mg2+observed during mitosis may also contribute to this global compaction47. Nucleosomes have a net negative charge and repulse each other. An increase in free Mg2+decreases the repulsion and compacts chromosomes in vitro47,48,49....
of the Spindle Assembly Checkpoint (SAC) mechanisms of selection [25,26]. Hence, each homologous pair (bivalent) requires at least one CO for chromosomes to segregate properly [20], known as the “obligatory CO”. In male sex chromosomes, formation of the obligatory CO is restricted to the...