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
arsen [322]
3 years ago
13

Explain the structure of a chromosome (please)

Biology
1 answer:
Paha777 [63]3 years ago
7 0

Answer:

Chromosome structure consists of a long arm region and a short arm region connected at a central region known as a centromere. The ends of a chromosome are called telomeres. Duplicated or replicated chromosomes have the familiar X-shape and are composed of identical sister chromatids.

Explanation:

You might be interested in
What is personality in psychology ?​
igor_vitrenko [27]

Personality psychology is a branch of psychology that examines personality and its variation among individuals. It aims to show how people are individually different due to psychological forces. 

5 0
2 years ago
The diagram below shows four positions of the Moon. Which position produces the highest possible tides?
Nookie1986 [14]

Answer:

Full moon and New Moon

7 0
3 years ago
How does a nucleus help the cell survive
Lerok [7]

The nucleus manages the daily operations of the cell. Organelles need instructions from the nucleus. Without a nucleus, the cell cannot get what it needs to survive and thrive. A cell without DNA lacks the capacity to do much of anything other than its one given task.

6 0
3 years ago
Helppppp meeeeeeee pleaseeeeeee
Karolina [17]
 A Cinder Cone Volcano. It forms with an explosive force and when layers of debris a ash accumulate.
8 0
4 years ago
Which of the following did you remember?
Kaylis [27]
Answer:
All statements are true and explain the function of most organelles present in the cell.
Explanation:
I remember the following:
-The nucleus directs cell activity: the nucleus is where the genetic information is found and by means of gene expression it controls the cellular functions.
-Ribosomes produce proteins for the cell: Ribosomes make messenger RNA proteins (mRNA) by connecting amino acids together
-These proteins are then moved through the cell by the endoplasmic reticulum: it is a network of membranes within the cell through which proteins and other molecules move
-The Golgi apparatus packages and distributes proteins from the endoplasmic reticulum: It transforms and exports protein to the rest of the body. Proteins, in their passage through the Golgi apparatus, carry out a modification process.
-Vacuoles store water, waste products, food, etc: vacuoles store substances, in plants they occupy a large percentage of the cytoplasm and change their size during ormoregulation.
-Lysosomes break down waste material and debris: They contains hydrolytic enzymes that allow intracellular digestion of macromolecules
-Mitochondria break down sugar molecules to supply energy. Similarly, chloroplasts capture the energy from sunlight and convert it into chemical energy: Chloroplasts and mitochondria through the processes of cellular respiration and photosynthesis produce energy necessary for the vital functions of the cell.
-The cell membrane protects the cell and controls what enters and leaves it. The cell wall supports the cell membrane, maintains the cell’s shape, and protects the cell. The cytoplasm supports and protects organelles in the cell: The membrane is the support of the cell and through it there is exchange with the external environment. The cytoplasm is the one that supports the rest of cellular organelles
6 0
3 years ago
Read 2 more answers
Other questions:
  • HELPPPP: Which statement describes ALL living things? A) They must reproduce sexually. B) They are composed of one or more cells
    8·2 answers
  • How does a tumor metastasize (spread around the body) and grow tumors in other places in the body?
    12·1 answer
  • Please Help, Which of these is formed by lava flow?
    5·2 answers
  • Greenlake is a small lake in Seattle, WA that sometimes experiences blooms of cyanobacteria, photosynthetic nitrogen-fixing bact
    8·2 answers
  • Do your muscles get stronger every time they repair themselves
    15·1 answer
  • Suppose mendel breeds some true-breeding tall pea plants together with true-breeding short plants, to produce hybrid offspring (
    11·1 answer
  • (your opinion) Give two reasons why it might be better to purchase fruits without seeds. You may indicate personal preference as
    6·1 answer
  • Bacteria, like the Lactobacillus acidophilus use sugar as an energy source for anaerobic cellular respiration. This process prod
    9·1 answer
  • This organism spends its day attached a hard underwater surface. Water currents flowing through it provide the organism with foo
    14·1 answer
  • The most common phenotype in a natural population is referred to as the
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!