An object that starts and ends at the same point would have zero displacements.
<h3>What is displacement?</h3>
Displacement is the property of a body or an object to be moved from one place to another.
Thus a body that moves or is moved from point A to point B has been displaced.
A body with zero displacements either did not move at all or finished at the same point it started.
For example, a body that moves from point A to B, and then back to A will have zero displacements.
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For a species of beetle, n = 20, a diploid cell would contain 40 chromosomes overall.
<h3>How do chromosomes work?</h3>
A chromosome is a long DNA molecule that houses all or some of the genetic code of an organism. In order to preserve the quality of the chromosome, chaperone proteins and histones, a type of packaging protein present in the majority of eukaryotic chromosomes, attach to and condense the DNA molecule.
<h3>What place do chromosomes come from?</h3>
The DNA that makes up each chromosome has been continuously tightly coiled around proteins called histones to support its structure.
<h3>Which of the four chromosomal kinds:</h3>
- Sub metacentric chromosomes.
- Chromatin that is acrocentric.
- The telocentric chromosomes.
- Chromatin that is metacentric.
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<span>The correct answer is membrane. Just like the fence protects the yard so does a membrane protect the cell. It prevents things from getting in or out unless passageways are created. The things in the yard would be the mitochondria and other organelles, while the air in the yard and the ground where all things are found would be the cytoplasm. The membrane protects what's in just like a fence protects those in the yard.</span>
Answer:
1/16
Explanation:
Sickle-cell disease is caused by a homozygous recessive genotype <em>dd</em>.
A man and a woman both heterozygous Dd will have the following offspring:
The probability of having a <em>dd</em> child with Sickle-cell disease is 1/4. Each time they have children the gamete combination is random, so the genotype of the second child is independent from the genotype of the first child.
According to rules of probability, if two events are independent from each other, the probability of both happening is calculated by multiplying the individual probabilities of each.
Therefore the probability of having the first two children with the disease is 1/4 x 1/4 = 1/16.
