Test
Edexcel Additional Science Biology Topic 1- Genes and Enzymes
Preguntas del test (40)
1What base pairs with Adenine?
- AGuanine
- BThymine
- CCytosine
- DUracil
2What part of plant cells enable them to photosynthesize?
- AChloroplasts
- BMitochondria
- CNucleus
- DVacuole
3Which of these features do only bacteria cells have?
- ACell Wall
- BFlagellum
- CCytoplasm
4Which 2 scientists constructed the model of the DNA molecule?
- ARosalind Franklin and Maurice Wilkin
- BJames Watson and Maurice Wilkin
- CRosalind Franklin and Francis Crick
- DJames Watson and Francis Crick
5Where in a cell are proteins made?
- ARibosomes
- BNucleus
- CMitochondria
- DChloroplasts
6During the transcription process of Protein Synthesis, adenine is replaced with uracil
- AVerdadero
- BFalso
7what is the name of the stage in protein synthesis where the mRNA is read a codon at a time at the ribosomes?
- ATranscription
- BTranslation
8During protein synthesis what does tNRA bring to the ribosome?
- AAmino acids
- BProteins
- CRed blood cells
- DmRNA
9A change to an organism's DNA base sequence is know as what?
- AA mutation
- BA characteristic
- CVariation
- DGenes
10mutations can only be harmful
- AVerdadero
- BFalso
11If it's too hot enzymes will die
- AVerdadero
- BFalso
12The optimum temperature for most human enzymes is what?
- A37 degrees celsius
- B36 degrees celsius
- C36.5 degrees celsius
- D38 degrees celsius
13which factors can potentially denature enzymes?
- Atemperature
- Bsubstrate concentration
- Clight intensity
- DpH level
14which is a positive about the Human Genome Project?
- AIncreased Stress
- BAccurate Diagnosis
- CDiscrimination from insurers
- Dincrease crop yield
15which of these are negatives about the Human Genome Project?
- APeople with genetic problems could come under pressure to not have children
- Bdoctors know what genes cause what illnesses so we could get better diagnosis'
- CEmployers might discriminate against people who are genetically more likely to get a disease
- DLife insurance would be hard or expensive to get if you're genetically susceptible to diseases
16in genetic engineering what is used to cut genes out of an organism's chromosome?
- Aenzymes
- Bscissors
- Clasers
- Dbacteria
17what is the specific name for enzymes that cut the DNA?
- Alysozyme enzymes
- Brestriction enzymes
- CDNA- enzymes
- Dseparating enzymes
18which of these are benefits of genetic engineering?
- AReducing vitamin A deficiency- GE rice called Golden Rice contain genes that create Beta- Carotene which helps with Vitamin A deficiency
- BReduces biodiversity
- Cincreases crop yield
- Dproduce human insulin on a commercial scale
19a negative of Genetic Engineered food is that people are concerned we could develop allergies to them
- AVerdadero
- BFalso
20Mitosis results in 2 haploid daughter cells
- AVerdadero
- BFalso
21what does Mitosis create?
- A2 diploid daughter cells
- B2 diploid daughter cells that are genetically identical
- C4 haploid daughter cells that are genetically identical
- D2 haploid daughter cells
22a cell created from mitosis will have 23 pairs of chromosomes
- AVerdadero
- BFalso
23Mitosis is sexual reproduction
- AVerdadero
- BFalso
24a haploid cell has how many chromosomes?
- A23 pairs
- B23
- C46
- D15
25Meiosis has 2 divisions
- AVerdadero
- BFalso
26cells produced from Mitosis are genetically identical
- AVerdadero
- BFalso
27cells produced from meiosis are genetically identical
- AVerdadero
- BFalso
28Is meiosis sexual or asexual reproduction
- Aasexual
- Bsexual
29in cloning, when the nucleus of a cell is removed it is...
- Aenucleated
- Bde-nucleated
- Cnucleised
- Dremonucleated
30what is given to the cell during cloning in order to stimulate it and make it divide
- Aan electric shock
- BHeat radiation
- Cultra-sonic vibrations
- Da prod
31cloning could provide organs for organ transplants
- AVerdadero
- BFalso
32cloning could help endangered species
- AVerdadero
- BFalso
33if clones were exposed to a new disease, the entire population could be wiped out
- AVerdadero
- BFalso
34there are only embryonic stem cells
- AVerdadero
- BFalso
35where can adult stem cells be found
- Amuscle tissue
- Bbone marrow
- Cskin
- Dsaliva
36the process of a stem cell becoming specialised is known as what?
- Adifferentiation
- Bspecialisation
- Cspecification
- Ddiffering
37Embryonic stem cells are
- Amulti-potent
- Bpluri-potent
38adult stem cells are
- Amulti-potent
- Bpluri-potent
39Cytosine pairs with Thymine
- AVerdadero
- BFalso
40when 2 gametes join they become a zygote
- AVerdadero
- BFalso
Información
- Descripción
- 40 question quiz on B2 topic 1. any comments on how to improve it or what other quizzes you'd like are welcomed. :)
- Autor
- hchen8nrd
- Idioma
- English
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- Historial
- Creado el 17 abr 2015 · actualizado el 17 ene 2017
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