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Olenka [21]
3 years ago
7

Which stage of viral reproduction takes place when the spikes of the virus bind to a specific receptor molecule on the surface o

f a host cell?
Biology
1 answer:
viva [34]3 years ago
3 0

Answer:

Attachment stage

Explanation:

Viruses are organisms that are incapable of replicating on their own, instead they infect a living host in order to make use of its transcriptional, replication and gene expression abilities to multiply. This process of infection characterizes the reproductive life cycle of the viral cell.

Normally, viruses are specific when infecting their hosts but they generally commence the infection cycle with ATTACHMENT. In this stage, the viral cell with the aid of its proteinous capsid binds to specific receptor site on the cell membrane of its host cell before making entry by incorporating its genetic material.

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Which best explains how binary fission contributes to the genetic continuity of a population? A Binary fission maintains genetic
kozerog [31]

Answer:

B Binary fission maintains genetic continuity because the daughter cells contain the same number of chromosomes as the parent cell.

Explanation:

Genetic continuity ensures that genetic information is passed from one generation to another in correct way so that the resultant progeny has the complete set of genes required for survival. For example, at the end of mitosis, daughter cells should have the same number of chromosomes as parent cell.

Binary fission is a method of reproduction in some organisms like bacteria. It is an asexual mode of reproduction in which the parent cell splits into daughter cells without the process of fusion with another cell. It still maintains genetic continuity because the daughter cells are identical to the parent cell and thus have same number of chromosomes and type of genes.

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3 years ago
Around the world, people often die from waterborne diseases caused by bacteria and viruses. What is a likely reason for this sit
dimaraw [331]

Answer:

People drink water that has been contaminated by animal feces

Explanation:

7 0
3 years ago
What evidence supports the big bang theory?
igomit [66]

Evidence supporting the Big Bang theory includes the presence of cosmic microwave background radiation, visual observation of redshifted objects and the abundance of primordial elements found throughout the universe.

8 0
3 years ago
A continuous, uncontrollable anxiety or worry that occurs almost on a daily basis during a period of six months and that is not
LenaWriter [7]
<span>A continuous, uncontrollable anxiety or worry that occurs almost on a daily basis during a period of six months and that is not due to any physical causes such as disease, drugs, or drinking too much coffee is called generalized anxiety disorder.
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7 0
3 years ago
Climate is primarily determined by the interaction of the air and _____. oceans winds lithosphere plants
Mariulka [41]

Answer: Oceans

Explanation:

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hence, these two factors are responsible for the climate of a region.

7 0
3 years ago
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