An α helix is generated when a single polypeptide chain turns around itself to form a structurally rigid _______.
cylinder
举一反三
- The spatial conformation of a protein mainly depends on A: α-helix and β-sheet B: the sequence of amino acids in polypeptide chain C: disulfide bonds in polypeptide chain D: hydrophobic effects in polypeptide chain E: hydrogen bonds in polypeptide chain
- A β sheet is made when ______________ form between segments of a polypeptide chain that lie side by side.
- In 1953, Watson and Crick found that: A: Two polynucleotide chains form double helix structure of DNA by hydrogen bond linkage B: DNA replication is semi-conservative and usually form heteroduplex DNA consisted of one parental chain and one daughter chain C: Three continuous nucleic acids consist of a genetic code D: Genetic material is usually DNA instead of RNA
- Each polypeptide chain consists of a backbone that is adorned with a variety of chemical side chains. This polypeptide backbone is formed from a repeating sequence of the core atoms (_________) found in every amino acid.
- The winds generated by the fire itself are a little slower than the wind of the surrounding area.
内容
- 0
when bits are transfered in () form from one point to another, they are sent one bit at a time along a single line.
- 1
A-frames and cylinder block is held together by _____ to form a rigid structure.
- 2
The truth the earth turns around the sun is known to all.
- 3
7. I would like a(n) ________ for this cell phone. It always turns itself off.
- 4
Which part of translation involves the addition of amino acids to an existing polypeptide chain? A: initiation B: elongation C: termination D: transcription