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jeka94
3 years ago
12

What effect are multiple alleles likely to have on a population?

Biology
1 answer:
maw [93]3 years ago
5 0

The right answer is C

An allele is a variable version of the same gene, because a gene can have several versions of the same gene, which can give slightly different structural proteins due to these variations in the DNA, thus, giving different phenotypes.

In most cases, the multiplicity of alleles in a gene gives phenotypic variation in the population due to their different expression.  Therefore, the larger the number of alleles, the greater the number of phenotypes in the population.

To a lesser extent (more rarely), some variation can be a deletion giving non-functional proteins, causing rare diseases (like cystic fibrosis, hemophilia, sickle cell anemia).

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Magnetic reversals ____.
scZoUnD [109]
Magnetic reversals C. PROVIDE STRONG EVIDENCE FOR SEAFLOOR SPREADING.

Magnetic reversal is evident when the <span>change in the Earth's magnetic </span><span>field results in the magnetic </span><span>north being aligned with the geographic south, and the magnetic </span><span>south being aligned with the geographic north. It is also called geomagnetic reversal</span><span>.</span>

Magnetic reversals can occur in less than 100 years. It led to extinction events during the pre-historic times. Because the magnetic field is rapidly weakening, magnetic reversal may cause biblical floods.

8 0
3 years ago
Read 2 more answers
What is the term for traits that reflect specific evolutionary lineages and can be informative of evolutionary relationships?
kifflom [539]

Traits that reflect specific evolutionary lineages and can be informative of evolutionary relationship.

6 0
3 years ago
list at least 2 pieces of evidence to support the claim “forest coverage has undergone changes since the 1700’s”
Tasya [4]

The forest coverage is changing due to many reasons including deforestation and urbanization.

<h3>What is urbanization?</h3>

The demographic change from rural to urban areas, the concomitant reduction in the percentage of people living in rural areas, and the ways in which communities adapt to this change are all referred to as urbanization.

By trying to remove or fragmenting forest cover, urbanization has a direct impact on forest ecosystems.

Thus, it can be concluded that the changes in the forest coverage has occurred due to deforestation and insufficiency of land.

For more details regarding urbanization, visit:

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3 0
2 years ago
Existing landfilles are generally considered sufficient to serve as the sole means of disposing of the nations waste for the for
IrinaK [193]

Answer:

False.

Explanation:

The waste may be defined as any undesirable substance that left out after using the particular substance. The waste substance can be defined into two main classes - biodegradable and non biodegradable waste.

The one way to dispose out the waste product is the landfilles. The substance that cannot be degraded by any other means can be land filled. But this waste disposal method is not enough to contain the whole nation waste and all the waste cannot be land filled.

Thus, the correct answer is false.

5 0
3 years ago
What makes a fossil an index fossil ?
Masja [62]

Answer:

An index fossil is a fossil used to determine the age of the sediments in which it is found. When quickly approximating the age of new finds, an archaeologist looks at the rocks in which it is buried, as those sediments would have been on the surface at the time of the death of the pre-historic creature.

hope this helps

5 0
3 years ago
Read 2 more answers
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