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
n200080 [17]
3 years ago
5

A Conceptual Approach 6th Edition MHE/Freeman Malaria is a life-threatening illness caused by Plasmodium parasites that are tran

smitted to humans by infected Anopheles mosquitoes. Freitas-Junior et al. (2005) describe how multiple Plasmadium species evade host immune systems via antigenic variation, wherein the parasites regularly change the antigens on their surfaces to evade detection by host immune cells The mechanism that varies antigen expression is epigenetic: histone proteins associated with a suite of antigen-coding genes are repeatedly chemically modified, such that chromatin structure changes over time, producing variation in expression of particular antigen-coding genes What chemical changes in histone proteins are responsible for changes in gene expression? O O O O A. addition of acidic groups and removal of alkaline groups within the tail domains of histones.
B. removal of electrically-charged functional groups from the tail domains of histones.
C. addition or removal of methyl and acetyl groups within the tail domains of histones.
D. addition or removal of methyl and acetyl groups within the globular domains of histones.
E. proteolytic cleavage of the globular and tail domains of histone proteins into oligopeptides.
Biology
1 answer:
azamat3 years ago
3 0

Answer:

f

Explanation:

You might be interested in
The cohesion of water is caused by:
Luba_88 [7]
The answer is letter C. Hydrogen bonds


I hope this one helps!
5 0
3 years ago
Which of the following is true about protein molecules?
larisa86 [58]

Answer:

A.

Protein molecules have many functions in the body, including the storage of genetic information.

Explanation:

4 0
2 years ago
Classify the characteristics as being unique to prokaryotic cells, common to both cell types, or unique to eukaryotic cells.
Zanzabum

The number one difference among those  sorts of organisms is that eukaryotic cells have a membrane-certain nucleus and prokaryotic cells do not. The nucleus is wherein eukaryotes save their genetic information.

Prokaryotic cells lack a nucleus surrounded with the aid of using a complicated nuclear membrane and typically have a single, round chromosome positioned in a nucleoid.

Eukaryotic cells have a nucleus surrounded with the aid of using a complicated nuclear membrane that includes multiple, rod-fashioned chromosomes.DNA is loosely contained with inside the nucleoid region, eukaryotic cells own a nucleus, that's surrounded through a complicated nuclear membrane that homes the DNA genome.

To learn more about eukaryotic cells here

brainly.com/question/982048

#SPJ4

6 0
2 years ago
The MOST distinctive feature of ape dentition, which clearly distinguishes apes from Old World monkeys, is
Ugo [173]

The most distinctive feature of ape dentition, which clearly distinguishes apes from Old World monkeys, is a Y-5 molar pattern.

<h3>What is the Y-5 molar pattern?</h3>
  • This is a distinctive type of molar teeth pattern found in apes and hominoids.
  • In this, 5 cusps or raised surfaces are present on the grinding surface of teeth, roughly forming a Y- shape. Therefore, this is also known as Y-5 pattern.
  • Whereas Old world monkeys have only 4 cusps on their lower molars present in a bilophodont pattern.
  • A Y-5 molar is formed when the tooth is divided into different pieces which form the complete structure of the tooth.
  • In bilophodont pattern the tooth is divided into 2 symmetric sections.
  • The dental formula of apes is 2.1.2.3/2.1.2.3 i.e. 2 incisors, 1 canine, 2 premolars, 3 molars.

Learn more about dentition in apes here:

brainly.com/question/13375557

#SPJ1

7 0
2 years ago
1. En una actividad pedagógica, Luis organiza una dinámica con los estudiantes de Química: para ello quien menos utilice y respo
11111nata11111 [884]

Respuesta:

d. Ninguno tiene la razón

Explicación:

Para convertir masa a moles, necesitamos la masa molar de cada sustancia.

Fernando (58.85 g Fe)

La masa molar de Fe es 55.85 g/mol.

58.85 g × 1 mol/55.85 g = 1.054 mol

Jacqueline (23.05 g Na)

La masa molar de Na es 22.99 g/mol.

23.05 g × 1 mol/22.99 g = 1.003 mol

Carlos (35.45 g Cl)

La masa molar de Cl es 35.45 g/mol.

35.45 g × 1 mol/35.45 g = 1.000 mol

Paola (27.0 g Al)

La masa molar de Al es 26.98 g/mol.

27.0 g × 1 mol/26.98 g = 1.00 mol

4 0
3 years ago
Other questions:
  • The entire sequence of dna in a cell used for dna profiling is called the __________.
    11·1 answer
  • WHICH OF THE FOLLOWING MECHANISMS OF EVOLUTION USUALLY CAUSES AN INCREASE IN GENITIC DIVERSITY WITHIN A SPECIES
    8·1 answer
  • Over the years, the average temperature on Earth has been increasing. Which of the following would be a good
    10·2 answers
  • Describe the similarities and differences between the structure of the xylem and the phloem.
    14·1 answer
  • Which characteristic of life best describes the process of photosynthesis
    5·2 answers
  • Decreasing the use of pesticides and herbicides can help agricultural sustainability. Please select the best answer from the cho
    11·2 answers
  • The Milky Way is a _____ galaxy.
    11·2 answers
  • 17. Which of the following examples of an ecological effect leading to an evolutionary effect is most correct? A) When seeds are
    11·1 answer
  • The image above shows four different species with similar bone structure. These homologous structures indicate:
    12·1 answer
  • Male guppies found in areas without predators are more colorful than the ones found in locations with large predator populations
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!