Video Transcript
Fill in the blank. In telophase two, two blank
membranes begin to form around the chromosomes.
This question describes telophase
two, a specific stage in the process of meiosis, which is a special form of cell
division that is used to produce gametes for sexual reproduction. Meiosis includes converting one
diploid cell into four genetically different haploid cells through two cellular
divisions.
You may recall that a diploid cell,
which is often represented as 2𝑛, has two complete sets of chromosomes, like most
of the body cells, while a haploid cell contains only a single set of chromosomes,
which is often represented as 𝑛. As indicated by the “two” in
telophase two, this stage occurs in the second round of cellular division during
meiosis. Let’s explore this in more
detail.
By the end of meiosis one, one
diploid cell has been converted into two haploid cells. And each of the chromosomes in
these haploid cells has been replicated. These replicated chromosomes are
pulled apart in meiosis two. And by the beginning of telophase
two, which is the phase of interest to us in this question, the cells will look
something like this. As you can see, one of the events
that occurs in telophase two is that two nuclear membranes begin to form around the
chromosomes in each of the two cells that entered telophase two. This provides us with the
information we need to answer the question.
In telophase two, two nuclear
membranes begin to form around the chromosomes.
