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
olga2289 [7]
3 years ago
7

Whats the relationship between DNA,chromosomes,and genes?

Biology
1 answer:
Elina [12.6K]3 years ago
6 0
DNA is a chain of nucleotides bonded together.  On that chain there are particular portions of it that the sequence of the nucleotide codes for particular proteins; this is known as a gene.  In eukaryotric cells, DNA is coiled around proteins such as histones to form chromatids which when two join at the centre by a centromere to form a chromosome.
You might be interested in
Evolution can be guided by random processes. What is the effect called when some genotypes are lost in a small population over t
soldi70 [24.7K]

Answer:

Genetic drift

Explanation:

Genetic drift is defined as the random change in allelic frequencies from one generation to the other.

Genetic drift is an evolutionary mechanism in which the allelic frequencies in a population change through many generations. Its effects are harder in a small-sized population, meaning that this effect is inversely proportional to the population size. Genetic drift results in some alleles loss, even those that are beneficial for the population, and the fixation of some other alleles by an increase in their frequencies. The final consequence is to <u>randomly</u> fixate one of the alleles. Low-frequency alleles are the most likely to be lost. Genetic drift results in a loss of genetic variability within a population.  

Genetic drift has important effects on a population when this last one reduces its size dramatically because of a disaster -bottleneck effect- or because of a population split -founder effect-.

5 0
3 years ago
What function does a nueron perform in a human body
BabaBlast [244]
Neurons function to process and transmit information. In vertebrate animals, neurons are the core components of the brain, spinal cord, and peripheral nerves.
3 0
3 years ago
If a plant closes its stomata, this means *
ankoles [38]
It cannot take in carbon dioxide for photosynthesis
4 0
3 years ago
What types of microorganisms are considered a biological hazard
marusya05 [52]

Explanation:

Biological hazards include microorganisms such as bacteria, viruses, yeasts, molds and parasites. Some of these are pathogens or may produce toxins. A pathogenic microorganism causes disease and can vary in the degree of severity

8 0
2 years ago
Unique to primary growth is fact that it ?
Anvisha [2.4K]
The vascular cambium produces secondary phloem and xylem tissue.
Vascular cambium, a plant tissue located between the xylem and the phloem in the stem of a vascular plant. It is also the source of both secondary xylem growth and the secondary phloem growth.  Vascular cambium is usually found on dicots and gymnosperms not on monocots which usually lack secondary growth. It does not transport water, dissolved food or minerals by plants.Vascular cambia are cylinders of unspecialized meristem cells which divide  to make new cells which specialize to form secondary vascular tissues.<span> </span>

7 0
3 years ago
Other questions:
  • Which best describes the purpose of bar graphs?
    11·2 answers
  • What structural changes happen in abnormal prion proteins?
    5·1 answer
  • Which person probably has the highest concentration of gonadotropins in his or her bloodstream? A 6-year-old boy B 12-year-old g
    9·1 answer
  • 1. Which one lived in Antarctica earlier , the the labyrinthodont, the lystrosaurus, or the duck-billed dinosaur? Explain.
    15·2 answers
  • What are human trachea epithelium specialized to do
    9·1 answer
  • Summarize the importance of cells within the levels of organization in biological systems. Examine
    10·1 answer
  • Please answer this one short question<br> i need helppppp<br> one science question
    7·2 answers
  • What would the seasons on Earth be like if its axis was tilted like Uranus
    12·1 answer
  • The answers are
    14·1 answer
  • In _________, enzymes cut DNA into fragments, which are separated by size to form a pattern of bands.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!