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
Nikitich [7]
2 years ago
6

The host range of a virus is determined by _____. The host range of a virus is determined by _____. the proteins in the host's c

ytoplasm the enzymes carried by the virus whether its nucleic acid is DNA or RNA the proteins on its surface and that of the host
Biology
1 answer:
PIT_PIT [208]2 years ago
7 0

Answer:

the proteins on its surface and that of the host

Explanation:

The process of viral infection begins with the entry of the virus to its host cells. For this purpose, viral surface proteins attach to receptor proteins found on target host cells. For example, the coronavirus responsible for the pandemic contains spike (S) proteins on its surface that bind to angiotensin-converting enzyme 2 (ACE2) receptors and thus infects host target cells. Moreover, the specificity of the binding determines the ability to infect and the host range of the viruses. In the case of coronavirus, it has been suggested that ACE2 receptors are not fully developed in children, thereby children would be less susceptible to viral infection.

You might be interested in
Name two nutrients that plants need.
artcher [175]

Answer:

Sunlight and water.

Explanation:

The sun is the plant's most important nutrient. Plants convert sunlight into sugars in order to grow. Water is needed in two ways, it serves as both a solvent for mineral salts that are carried inside plant cells, and it is an essential component of photosynthesis. The questioner might have asked "name one" so they don't have enough information to answer with any greater certainty - but the answer remains the same regardless of how many nutrients they ask about.

Minerals are also required by plants in order to function properly including calcium, potassium, iron, magnesium just to name a few minerals which are found in healthy nutritious produce!

5 0
2 years ago
Read 2 more answers
Some insects have evolved the ability to pollinate only specific types of flowers. The process of two species evolving together
lana [24]
Its A:coevolution trust me it is
8 0
3 years ago
Read 2 more answers
Where would you expect to find green algae? Choose three answers
Andrei [34K]
On rocks in the sun under moving or stagnant water
6 0
3 years ago
Explain how fitness can change the allele frequency of a population. PLZ no link
Vladimir [108]

Answer:

Natural selection can cause microevolution (change in allele frequencies).

Explanation:

With fitness-increasing alleles becoming more common in the population.

7 0
3 years ago
Red-flowering snapdragons are homozygous for allele R1. White-flowering snapdragons are homozygous for allele R2. Heterozygous p
lana [24]

Answer:

a) 1/2 red, 1/2 pink; b) all pink; c) 1/4 red, 1/2 pink, 1/4 white; d) 1/2 white, 1/2 pink

Explanation:

The flower color trait in snapdragons shows incomplete dominance: the heterozygous genotype produces an intermediate phenotype between the two different homozygous genoytpes.

<u>The possible genotypes and phenotypes are:</u>

  • R1R1 : red
  • R1R2: pink
  • R2R2: white

<h3>a. R1R1 X R1R2 </h3>

The R1R1 individual only produces R1 gametes. The R1R2 parent produces 1/2 R1 gametes and 1/2 R2 gametes.

<u>For that reason, the F1 will be:</u>

  • 1/2 R1R1 (red)
  • 1/2 R1R2 (pink)

<h3>b. R1R1 X R2R2 </h3>

The R1R1 individual only produces R1 gametes. The R2R2 parent only produces R2 gametes.

<u>For that reason, the F1 will be</u> :

  • 100% R1R2 (pink)

<h3>c. R1R2 X R1R2 </h3>

Both parents are heterozygous. This is a monohybrid cross, and from Mendel's Laws <u>we expect the following offspring:</u>

  • 1/4 R1R1 (red)
  • 2/4 R1R2 (pink)
  • 1/4 R2R2 (white)
<h3 /><h3>d. R1R2 X R2R2</h3>

The R1R2 parent produces 1/2 R1 gametes and 1/2 R2 gametes. The R2R2 individual only produces R2 gametes.

<u>For that reason, the F1 will be:</u>

  • 1/2 R2R2 (white)
  • 1/2 R1R2 (pink)
8 0
3 years ago
Other questions:
  • B) how does a vaccine change the body
    6·2 answers
  • What is power?
    14·1 answer
  • High Energy electrons are transported from the chlorophyll to other molecules in the chloroplast by?
    9·1 answer
  • what is responsible for identifying foreign invaders and remains in the system for a long period of time? PLEASE ANSWER QUICK
    13·1 answer
  • Are carrots seedless ,vascular ,or both
    5·2 answers
  • Australia has invested in capital goods, so their standard of living and GDP increasing true or false
    6·1 answer
  • PLEASE HURRY
    12·2 answers
  • The process of DNA replication occurs just before ______________.
    10·2 answers
  • Maintaining internal conditions within in an organism is a characteristic of life known as _____. metabolism energy cells homeos
    13·1 answer
  • The climate of Houston, Texas is humid subtropical, with a temperature
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!