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3 years ago

What causes daytime and nighttime on earth

Biology

2 answers:

iris [78.8K]3 years ago

8 0

Answer:C

Explanation: I am Smart

Fudgin [204]3 years ago

4 0

C the Earth spins in Space.

Hope this helped :)

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In meiosis, if the parent cell has 40 chromosomes, the daughter cell will have how many chromosomes?.

tatiyna

Answer:

Explanation:

during meiosis the number of chromosomes is split in half

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3 years ago

Are most of the deserts shown in the south Western or north western part of the u.s?

marshall27 [118]

North...................

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4 years ago

Match the descriptions / definitions with the term they best describe 1. Three dimensional relationship of the different polypep

3241004551 [841]

1. Three dimensional relationship of the different polypeptide chains in a multisubunit protein or protein complex K. Quaternary structure

2. Common folding pattern in proteins in which a linear sequence of amino acids folds into a right-handed coil stabilized by internal hydrogen-bonding between polypeptide backbone atoms. J. Alpha-helix

3. The amino acid sequence of a protein A. Primary structure

4. A region on the surface of a protein that can interact with another molecule through noncovalent bonding. I. Binding site

5. Three-dimensional arrangement of alpha-helices and beta-sheets within a single polypeptide, typically stabilized by a variety of noncovalent bonds, including ionic and hydrogen bonds, and nonpolar interactions / hydrophobic force. H. Tertiary structure

6. The chain of repeating carbon and nitrogen atoms, linked by peptide bonds, in a protein. E. Polypeptide backbone

7. Common structural motif in proteins in which different sections of the polypeptide chain run alongside each other and are joined together by hydrogen bonding between atoms of the polypeptide backbone. B. Beta-sheet

8. Portion of a polypeptide chain that has a discrete tertiary structure of its own and can often fold independently of the rest of the chain L. Protein domain

9. Regular local folding patterns in a protein, including alpha-helix and beta-sheet F. Secondary structure

C. Protein - large macromolecules composed of one or more long chains of amino acid residues with various functions within the cell.

D. Coiled-coil - a structural motif in proteins in which alpha-helices are coiled together (like a rope)

G. Side chain - a chemical group that is attached to a backbone.

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3 years ago

The earliest member of our own species can be referred to as

fenix001 [56]

Homo sapien. Also known as Lucy

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3 years ago

Read 2 more answers

The star in the diagram represents which of these? A. origin of replication B. replication fork C. replication bubble D. Okazaki

Alex777 [14]

Given what we know about the process of DNA replication, we can confirm that the star shown in the diagram represents the replication fork.

During the replication of DNA in the cellular process of multiplication, a structure known as the replication fork is formed. This fork is a structure that forms by helicases, which tear the hydrogen bonds that hold together two DNA strands in the form of a double helix.

The resulting structure contains two prongs, which are branches of the original DNA strand which are no longer doble or in the form of a helix. This area where the strands are separating into prongs is the replication fork which is being marked in the diagram by the star.

To learn more visit:

brainly.com/question/8185932?referrer=searchResults

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3 years ago