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inn [45]
3 years ago
6

What is Speciation?

Biology
1 answer:
DiKsa [7]3 years ago
7 0
Speciation is the formation of new and distinct species in the course of Evolution. Hope this helps!
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Which statements describe advantages of models in science? Check all that apply.
ddd [48]
Models show noticeable patterns, develop representations and explain scientific events.
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3 years ago
Read 2 more answers
Populations of the grasshopper Vandiemenella viatica possess different chromosomal fusions and inversions. Grasshoppers that are
svetlana [45]

Answer:

The options

a. New combinations of genes yielding genotypes of greater fitness

b. Few heterozygotes because of underdominance

c. Frequency-dependent selection, leading to fluctuations in fitness

d. Heterozygotes with greater fitness, owing to overdominance

e. A random assortment of genotypes because of genetic drift

The CORRECT ANSWER IS b.

b. Few heterozygotes because of under dominance

Explanation:

In genetics, underdominance (at times called "negative overdominance") is the opposite of overdominance.

It is the selection against the heterozygote, that leads to disruptive selection and divergent genotypes. It occurs in cases of inferior and reduced fitness (As in our case study, it is the different chromosomal fusions and inversions)

of the heterozygotic genotype to the dominant or recessive homozygotic genotype. It is unstable as it causes fixation of either allele.

Another example is the African butterfly species Pseudacraea eurytus, which makes use of Batesian mimicry to avoid predation. This species carries two alleles that gives a coloration that is alike to a different local butterfly species that is harmful to its predator. The butterflies who are heterozygous for this trait are observed to be intermediate in coloration and thus encounter an higher risk of predation and a decrease in the total fitness.

3 0
2 years ago
All of the following predicts why is it difficult to find a solution to decrease pollution except?
kvasek [131]
2 - Human refuse to stop polluting.

All other three are attempting to attack the problem of pollution.
7 0
3 years ago
The selection sort puts the selected data at the top of the list. Is It True Or False?
Anuta_ua [19.1K]
The answer is true because the top of the list would be the selection sorr
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2 years ago
State one possible reason why a gene for the production of a human hormone would be placed in bacterial DNA
trasher [3.6K]

Answer:

Production for Medical Use

Explanation:

There are some examples where human hormone genes are excised and placed into bacterial DNA.  An example of this is Human Growth Hormone, which is mass-produced for human use by bacteria.

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