Test
QUIZ - Topic 2
Este test tiene tipos de pregunta que se abren en el reproductor de siempre.
Preguntas del test (13)
1What are the components of a DNA molecule?
- Adeoxyribose, a phosphate and one of the bases: adenine, cytosine, guanine or thymine
- Bribose, a phosphate, and one of the bases: adenine, cytosine, guanine or uracil
- CDeoxyribose, a nitrate and one of the bases: adenine, cytosine, guanine or thymine
- DRibose, a nitrate and one of the bases: adenine, cytosine, guanine or thymine
2What type of bond holds the complementary base pairs together in a double helix of DNA?
- ACovalent bonds
- BPeptide bonds
- CGlycosidic bonds
- DHydrogen bonds
3What enzyme is used in transcription but not in translation?
- ADNA polymerase
- BHelicase
- CProtease
- DRNA polymerase
4A certain gene in a bacterium codes for a polypeptide that is 120 amino acids long. How many nucleotides are needed in the mRNA to code for this polypeptide?
- A30
- B40
- C360
- D480
5What is responsible for the conservation of the base sequence during DNA replication?
- ADNA polymerase working on one strand at the same time.
- BUnpaired bases always attracting their complementary nucleotides.
- CDNA helicase and polymerase are complementary.
- DBoth strands are identical to each other.
6During the process of replication, which bond(s) in the diagram of DNA below is/are broken?
- A3
- B4/5
- C1,2,6,7
- D1,7,4,5
7How would the following DNA sequence, ACGTTGCATGGCA, be transcribed?
- AUGCAACGUACCGU
- BTGCAACGTACCGT
- CACGTTGCATGGCA
- DACGUUGCAUGGCA
8The base sequence is the store of information.
- AVerdadero
- BFalso
9Nitrogenous bases have two rings.
- AVerdadero
- BFalso
10The base-phosphate backbone ensures that the store is stable and secure.
- AVerdadero
- BFalso
11In order to link nucleotides into a chain, a hydrogen bond is formed b/n the phosphate and a pentose sugar.
- AVerdadero
- BFalso
12Polymers of nucleotides also known as "strands"
- AVerdadero
- BFalso
13The four bases in RNA are [blank_start]adenine[blank_end], [blank_start]uracil[blank_end], [blank_start]cytosine[blank_end] and [blank_start]guanine[blank_end].
- Auracil
- Badenine
- Ccytosine
- Dguanine
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- El usuario ha eliminado su información de asignaturas Test sobre QUIZ - Topic 2 , creado por Usuario eliminado el 20/02/2020.
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- English
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- Creado el 20 feb 2020 · actualizado el 20 feb 2020
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