answer.
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
Anon25 [30]
2 years ago
15

A mutation in a gene in the fruit fly Drosophila was found to affect eye color. The protein affected was found to be completely

normal in its molecular weight and amino acid sequence, although much less of the protein is made in mutant flies. A reasonable explanation for the change in levels of protein is that the mutationA. causes the stop codon to be replaced by a sense codon.B. is a frame shift mutation near the start of the coding region.C. affects the splicing of the mRNA.D. occurs in the promoter of the gene, within several hundred base pairs of the start of transcription.E. is a change of a codon for serine into another codon for serine.
Biology
1 answer:
lilavasa [31]2 years ago
5 0

Answer:

The correct option is D. A reasonable explanation for the change in levels of protein is that the mutation occurs in the promoter of the gene, within several hundred base pairs of the start of transcription.

Explanation:

In genetics, a promoter can be described as a region where the RNA polymerase binds initially and starts transcription. The promoter is usually present near to the gene that has to be transcribed. The rate of transcription is controlled by the promoter region too. Hence, the correct option is D. The promoter region for the eye colour was changed due to mutation.

Other options are false because a change in a codon or base pair would have changed proteins being formed and would not have slowed the process.

You might be interested in
__________are inpatient treatment facilities that focus on the "resocialization" of the individual and use the program's entire
andriy [413]

Answer is a. therapeutic communities.

Therapeutic communities are a common form of long-term residential treatment for substance use disorders. These communities provide drug-free environments in which people with addictive problems live together in an organized and structured manner to promote change toward recovery and re-socialization. Some such groups evolved into self-supporting and democratically run residences to support abstinence and recovery from drug use.

8 0
2 years ago
Read 2 more answers
Use the drop-down menus to identify the organelles labeled on the animal cell to the right.
geniusboy [140]

The label A represents mitochondria.

The mitochondria is also called the powerhouse of the cell which converts glucose to energy rich molecules of ATP.

Label B represents nucleus.

Nucleus contains the genetic material or DNA, RNA , nucleolus, chromatin fibres and proteins. It contains the chromosomes which control the hereditary characteristics.

Label C represents lysosome.

Lysosomes contain digestive juices which breaks down large cell parts and large molecules and helps in intracellular digestion.

Label D represents rough endoplasmic reticulum having ribosomes.

The rough endoplasmic reticulum provides surface for protein synthesis. It is also used to transport cellular contents from one cell to another.

4 0
2 years ago
Read 2 more answers
e erythrocyte (red blood cell) count increases after a while when an individual goes from a low to a high altitude because the _
Aloiza [94]

The answer is; concentration of oxygen and/or total atmospheric pressure is lower at high altitudes

This means that at high altitude, due to the low pressure, every breath has a lower oxygen content than at a lower altitude. This, therefore, necessitates the body to increase the erythrocyte numbers in the blood to maximize the uptake of oxygen from the thinner air.

8 0
2 years ago
Visit this website about public health issues. Scroll to the bottom of the page under "What is the impact of Public Health", and
kobusy [5.1K]

Answer:

Part A: Influenza virus

Part B: Influenza is a public health issue because it is one of the leading cause of death all over the world. Proper vaccination against the illness can prevent death and other serious illness due to this virus.

Part C: serious illness and death, mainly among children and elderly

Part D: Efforts are underway to create a cheap and effective vaccine against this virus. The National Vaccine Program Office is responsible for coordinating and ensuring collaboration among federal agencies involved in vaccine and immunization activities.

Part E: A vaccine against this virus will prevent people from facing the effects of this virus. Also, compulsorily vaccinations against this virus will ensure a major reduction in deaths caused by it.

5 0
2 years ago
What is a disacharride?
irinina [24]
2 monosaccharides (glucose monomers) combined
4 0
2 years ago
Other questions:
  • Grains, seeds, nuts and root vegetables are examples of _________ carbohydrates and they take a __________ amount of time to bre
    11·2 answers
  • Genes that carry contrasting inheritance factors are called _____. heterozygotes homozygotes alleles
    6·2 answers
  • Wolves and hawks are at the same trophic level because they
    14·1 answer
  • An advantage associated with the Darrieus rotor is that it _____.
    14·2 answers
  • The cell cycle is regulated at the molecular level by a set of proteins known as
    7·1 answer
  • Which process uses energy to combine inorganic molecules to synthesize organic molecules
    9·2 answers
  • Consider a population of wildflowers in which the frequency of the red allele cr is p = 0.7. what is the frequency of the white
    7·2 answers
  • A codon a. consists of discrete amino acid regions. b. consists of two nucleotides. c. is found in all eukaryotes, but not in pr
    7·1 answer
  • What distinguishes archaea from animal cells? View Available Hint(s) What distinguishes archaea from animal cells? Archaea's RNA
    11·1 answer
  • Jezelyn needs to create a project that shows geographic isolation in action and decides to make a video. Which of the following
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!