Cross over is the first way genes are shuffled to give rise to genetic diversity. Cross over takes place in sexual reproduction. The normal way that cross over occurs is chromosomes line up side by side and break off pieces of themselves, then trade those pieces with each other.
If they break the pieces at the same locus in the sequence of base pairs, the result is an exchange of genes called genetic recombination and it ensures that the daughter cells produced have a different genetic makeup from the parent cell and thus diversity occurs.
Answer:
The letters of DNA pair up because they form hydrogen bonds: each contains hydrogen atoms, which are attracted to nitrogen or oxygen atoms in their partner
Explanation:
Antihistamine
This is a medication that can be bough without prescription. These is primariy used in allergies such as runny nse, watery eyes and itching. This can also give side effects such as drowsiness, dizziness and confusion. This can also affect on how the body process chemicals making them especially risky in combination with other drugs. This can have interactions with other drug that even a non lethal dose can cause life threatening condition.
Answer:
Parasitic Relationship
Explanation:
Symbiotic relationship:
is a term that defines an interaction between organisms of different organisms.
Parasitic Relationship:
A relationship in which one organism is benefited and one is not.
Example: A tapeworm living at the gastrointestinal parts.
Mutualistic Relationship:
A relationship in which both organisms benefit.
Example: Egyptian plover bird and the crocodile.
Commensal Relationship:
A relationship in which both organisms are not benefited nor harmed.
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