Test
DNA and RNA
Este test tiene tipos de pregunta que se abren en el reproductor de siempre.
Preguntas del test (24)
1Label the following nucleotide
- Acovalent bond
- Bionic bond
- Cpentose sugar
- Dnitrogenous base
- Ephosphate group
2Which of the following are pyrimidines?
- AThymine
- BAdenine
- CGuanine
- DCytosine
3DNA is a double helix made of two [blank_start]anti[blank_end]parallel strands of [blank_start]nucloe[blank_end]tides linked by [blank_start]hydrogen[blank_end]-bonding between [blank_start]comple[blank_end]mentary [blank_start]base[blank_end] pair.
- Aanti
- Bnucleo
- Chydrogen
- Dcomple
- Ebase
4Complete the following statement with the correct number. (Do not spell the number)
There are [blank_start]46[blank_end] chromosomes in "regular cells".- A46
5How many histone molecules combine to make a single bead?
- A5
- B8
- C13
- D24
6Only a purine will fit with a pyrimidine between the sugar-phosphate backbones, when base pairing occurs.
- AVerdadero
- BFalso
7The lagging strand goes in a 3 prime to 5 prime direction.
- AVerdadero
- BFalso
8The decoding of mRNA into a protein is called [blank_start]translation[blank_end].
- Atranslation
- Btranscription
- Cinitiation
- Delongation
- Etermination
9[blank_start]DNA[blank_end] is too large to leave the nucleus, but [blank_start]RNA[blank_end] can. Therefore [blank_start]DNA temporarily unzips[blank_end] and is used as a template to assemble [blank_start]complementary[blank_end] nucleotides into [blank_start]mRNA[blank_end].
- ADNA
- BRNA
- CmRNA
- DtRNA
- EDNA temporarily unzips
- FRNA temporarily unzips
- Gcomplementary
10Which of the following unzips DNA?
- ARNA polymerase
- BDNA polymerase
- CRNA primer
- DDNA primer
11Who was responsible for creating the endosymbiotic theory?
- APasteur
- BRosalin Franklin
- CWatson and Crick
- DMiller and Urey
12In eukaryotic chromosomes, replication can be initiated at several different points whilst in prokaryotes the entire genome is replicated at once.
- AVerdadero
- BFalso
13At the leading strand, DNA [blank_start]helicase[blank_end] splits the [blank_start]DNA[blank_end] into its two anti-[blank_start]parallel[blank_end] strands, creating a replication [blank_start]fork[blank_end].
- Ahelicase
- BDNA
- Cparallel
- Dfork
14Genetic information is copied from [blank_start]DNA to RNA[blank_end] because [blank_start]DNA[blank_end] is too large to leave the nucleus, but [blank_start]RNA[blank_end] can. Therefore [blank_start]a part of the DNA[blank_end] is temporarily unzipped by [blank_start]RNA polymerase[blank_end] and is used as a [blank_start]template[blank_end] to assemble complementary nucleotides into [blank_start]mRNA[blank_end]. The [blank_start]messenger RNA[blank_end] then goes through the pores of the [blank_start]nucleus[blank_end] into the cytoplasm to attach to a [blank_start]ribosome[blank_end]. This process is called transcription.
- ADNA to RNA
- BRNA to DNA
- CDNA
- DRNA
- Ea part of the DNA
- Fa part of the RNA
- GRNA polymerase
- HRNA primase
- IDNA polymerase III
- JDNA polymerase I
- Kligase
- Ltemplate
- MmRNA
- NtRNA
- Omessenger RNA
- Ptransfer RNA
- Qnucleus
- Rribosome
15A codon is a series of [blank_start]3[blank_end] adjacent bases in a [blank_start]mR[blank_end]NA molecule that codes for a specific [blank_start]amino[blank_end] [blank_start]acid[blank_end].
- A3
- BmR
- Camino
- Dacid
16Label the following diagram of translation
- Aanticodon
- BtRNA amino acid
- CmRNA
- DtRNA
17The mRNA that is released at the end of transcription is called pre-[blank_start]mRNA[blank_end]. [blank_start]pre-mRNA[blank_end] needs to undergo changes before it is [blank_start]exported out of[blank_end] the [blank_start]nucleus[blank_end] to protect it from the cytoplasmic environment.
- Aexported out of
- Bimported into
- Cnucleus
- Dcytoplasm
- Emembrane
- FmRNA
- GtRNA
- Hpre-mRNA
- Ipre-tRNA
18The anticodon goes in a [blank_start]3[blank_end]' -> [blank_start]5[blank_end]' direction.
- A3
- B5
19Ribosomes are the site of which of the following processes?
- Aprotein synthesis
- Bmeiosis
- Cmitosis
20A ribosome alone cannot synthesize a polypeptide chain.
- AVerdadero
- BFalso
21The intitial pre-MRNA contains [blank_start]intr[blank_end]ons that are removed from the pre-mRNA by [blank_start]spliceo[blank_end]somes, while the [blank_start]ex[blank_end]ons are spliced together.
- Aspliceo
- Bintr
- Cex
22The following enzymes are involved in DNA replication. Match the enzymes with their functions.
Helicase - [blank_start]Unwinds DNA double helix strands[blank_end]
DNA Polymerase III - [blank_start]produces complementary strands[blank_end]
Ligase - [blank_start]connects the Okazaki fragments[blank_end]
DNA Polymerase - [blank_start]replaces RNA primers with DNA[blank_end]- AUnwinds DNA double helix strands
- Bproduces complementary strands
- Cconnects the Okazaki fragments
- Dreplaces RNA primers with DNA
23Label the diagram about mitosis.
- AAnaphase
- BMetaphase
- CInterphase
- DProphase
- ETelophase
24Label the following ribosome during translation.
- Asmall ribosomal subunit
- Blarge ribosomal subunit
- CExit site (E-site)
- DProtein Site (P-Site)
- EAmino Acyl site (A-site)
- FmRNA
- GtRNA
Información
- Descripción
- Test sobre DNA and RNA, creado por Imani :D el 15/01/2018.
- Autor
- Imani :D
- Idioma
- English
- Visitas
- 685
- Etiquetas
- Valoración
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