1.) The majority of the human genome consists of a.) Open reading frames b.) Non

ID: 205440 • Letter: 1

Question

1.) The majority of the human genome consists of

a.) Open reading frames

b.) Noncoding DNA

c.) Highly repetitive DNA

d.) Genes that code for proteins

2.) The membrane-spanning segment of an integral membrane protein

a.) Has a hydrophobic surface and a hydrophilic core

b.) Has a hydrophilic surface and a hydrophilic core

c.) Has a hydrophilic surface and a hydrophobic core

d.) Has a hydrophobic surface and a hydrophobic core

3.) The molecule shown here is a(n)

a.) Ketohexose

b.) Aldohexose

c.) Ketopentose

d.) Aldopentose

4.) The motor protein myosin has

a.) A single head that interacts reversibly with actin filaments

b.) A head region connected by a coiled coil to a vesicle

c.) Two heads attached to a rigid neck lever

d.) A thin filament and a thick filament

5.) This structure is

a.) A pyrimidine nucleoside

b.) A purine nucleoside

c.) A pyrimidine nucleotide

d.) A purine nucleotide

OH HO OH

1. The majority of human genome consists of :

(B) noncoding DNA

It is because only 2% DNA is coding DNA and rest all is non coding DNA that accounts 98%.

2. The membrane spanning segment of an integral membrane protein has

3. The molecule is:

(D) aldopentose

4.The motor protein myosin has :

(A) A single head that interacts reversibly with actin filaments.

5. This structure is

because it has uracil as nitrogen base which is pyrimidine and it has sugar base attached to it so it is nucleotide

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