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vladimir2022 [97]
3 years ago
10

Two rodent populations become separated when a large canyon develops in a previously unbroken forest. When is allopatric speciat

ion between the two populations complete?
Biology
1 answer:
krek1111 [17]3 years ago
3 0

Answer:

Allopatric speciation occurs due to the geographical isolation between individuals of the same species. The geographical isolation can be due to canyon development, mountain formation, migration, etc.  

The geographical isolation gives different environmental condition to the separated population of same species to live which allow these two population to evolve differently and evolve in different species.

So when two population becomes different species and not able to interbreed with each other when give opportunity then the allopatric speciation between the two populations becomes complete.

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A pair of fruit flies reproduces and has 1000 offspring. All 1000 offspring have the alleles Gg. What is the most likely combina
AleksAgata [21]

Answer:

The correct answer would be - GG and gg.

Explanation:

As it is given that all the 1000 offspring having the same allele Gg which is only possible in one condition that is cross between GG and gg because it is a heterozygous condition in the offspring. So there must be both allele present and it can not be heterozygous parents as there would be a different combinations of offspring in that case.

If the parents either GG only all the offspring would be GG the same with gg than all the offspring will be gg, thus the correct answer would be GG and gg.

7 0
3 years ago
The first strong evidence for colinearity between a gene and its polypeptide product resulted from studies by:
ozzi

Answer:

The correct answer is option c, that is, Charles Yanofsky.

Explanation:

An American geneticist, Charles Yanofsky, worked as a faculty at Stanford University took part in the development of one gene-one enzyme hypothesis, and found attenuation, that is, a riboswitch mechanism.  

In the mechanism, the messenger RNA modifies its shape in response to a small molecule, and therefore, changes its binding capability for the regulatory region of an operon and a gene. His studies suggested that genes and proteins are co-linear. If the section of the intron in the gene gets mutated, then the protein generated by the protein also gets mutated.  

5 0
3 years ago
Bacteria can be harmful by creating diseases for humans and for plants.
sp2606 [1]
Infection occurs when viruses, bacteria, or other microbes enter your body and begin to multiply. Disease occurs when the cells in your body are damaged as a result of infection and signs and symptoms of an illness appear. ... Pathogenic microbes challenge the immune system in many ways.

So the answer is true.

Hope this helped :D
~Melis
8 0
4 years ago
What is the primary cellular fuel of most organisms? (It's a 7 letter word)
vesna_86 [32]
Glucose maybe because ATP wont work

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8 0
4 years ago
Read 2 more answers
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It kills the plant so no mineral salt
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