1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
spayn [35]
3 years ago
13

What are the chromosomes called when they look like Xs​

Biology
1 answer:
Marina86 [1]3 years ago
6 0

Answer:

I think you're referring to the Metaphase...

Explanation:

During Cell Division (or, rather before!) the DNA needs to be replicated. This normally is done by DNA Polymerase, and results in two identical double strands (the "Sister Chromatids".

These chromatids are held together at the Centromere, which will be the heart of the "X"-shape. After that the DNA is packed into Chromosomes by winding it around proteins called Histones. If I remember correctly there are 5 different Histones.

This "Zipping Up" makes the chromosomes more visible.

As the two sister chromatids are still connected, the result is the X-shaped Metaphase Chromosome....

You might be interested in
What is the material inside the nucleus?<br><br> Why is it important?
VARVARA [1.3K]
DNA. DNA holds the instructions for how the cell should work.
8 0
3 years ago
Sub to my channel (it's called jrpunior btw).
Amiraneli [1.4K]

Answer: i gottt youuu.

Explanation:

8 0
3 years ago
Which of the following best describes what happens to a cell's genetic material during the process of meiosis II?
balandron [24]

Answer:The answer is option A sister chromatids are separated from each other to form gametes.

Explanation:

Meiosis is a  type of cell division which produces 4 daughter cells with different genetic material. The ploidy number or set of chromosomes is reduced to half in the newly formed daughter cells.This process usually proceeds in two divisions-meiosis I and meiosis II with four stages in each division which are prophase, metaphase, anaphase and telophase.Sister chromatids separate from each other during anaphase II of meiosis II which produces four haploid gametes from two intermediate cells formed by meiosis I.Thus, sister chromatids are separated from each other to form gametes is the correct answer.

5 0
3 years ago
The kidneys secrete an enzyme called ____________ that aids in the regulation of blood pressure
worty [1.4K]
The kidneys secrete an enzyme called renin
8 0
3 years ago
Read 2 more answers
A protein is 300 amino acids long. Which of the following could be the number of nucleotides in a bacterial gene that codes for
butalik [34]

Answer:

2) 100

Explanation:

  • Every 3 nucleotides in an mRNA specifies the addition of one amino acid in a protein.
  • Each three-letter "word" which is the combination of nucleotides is called a codon.
  • Therefore, amino acids are coded by a series of three-letter "words" - a 300 nucleotide mRNA will code for a 100 amino acid protein.
7 0
3 years ago
Other questions:
  • How do organelles function together in cellular processes?
    13·1 answer
  • Compare the surface area to volume ratios of the three spheres representing cells. Which of the three cells if any has the great
    9·1 answer
  • Which equation shows a disaccharide with the monosaccharides that make it up
    13·2 answers
  • Which of these is a possible risk associated with stem cell therapy? A) The host’s body could reject the transplanted stem cells
    14·2 answers
  • Which of the following imports has increased over the past 6 years?
    7·2 answers
  • Please answer! will give brainliest.
    13·1 answer
  • Three cells undergo meiosis how many haploid cells are produced
    13·1 answer
  • Identify the characteristics of a leaf that make it a good tool for photosynthesis. Explain your answer.
    6·2 answers
  • Which of the following could NOT increase the rate of photosynthesis?
    14·2 answers
  • Part b zoom out until you can see other constellations that surround ursa minor, such as ursa major (the big dipper) and cassiop
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!