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2 years ago

1. How do fossils form?

Biology

1 answer:

noname [10]2 years ago

3 0

Explanation:

There is a LOOOONG process for this so here it is;

First things first.The animal dies. Soft parts of the animal's body, including skin and muscles, start to rot away. Scavengers may come and eat some of the remains. Before the body disappears completely, it is buried by sediment - usually mud, sand or silt. Often at this point only the bones and teeth remain. Many more layers of sediment build up on top. This puts a lot of weight and pressure onto the layers below, squashing them. Eventually, they turn into sedimentary rock. While this is happening, water seeps into the bones and teeth, turning them to stone as it leaves behind minerals. This process can take thousands or even millions of years.

I hope this answer helped. Thank you!

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3 years ago

Hom-ozygous tall pea plants look the same as heterozygous tall pea plants. Formulate a pollination experiment to identify whethe

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Hairpins often form at palindromic sequences in single strands of either RNA or DNA. However, several key features differentiate

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Answer:

Explanation:

B) The pentose in the hairpin adopts only the C-3\' endo pucker conformation.

C) The hairpin adopts a right-handed helix with a diameter of 26 Å .

D) The hairpin contains G:C, A:U, and sometimes G:U base pairs.

DNA and RNA are both nucleic acids. Aside the structural difference of DNA being double stranded and RNA being single stranded, in DNA, the nucleotide bases adenine (A) is paired with thymine (T); while cytosine (C) is paired with guanine (G); howerver in RNA, thymine is replaced with uracil.; thus in RNA, the base pairs are - A:U and G:C

RNA however sometimes take on a dynamic structure, called the wobble case pair where guanine and uracil pair - G:U.

The diameter of RNA is 26 Å, while that of DNA is is 20 Å

The ribose in RNA with a helical structure has a C3’ endo conformation.

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3 years ago