2525389
Pregunta 1
Pregunta
What base pairs with Adenine?
Respuesta
-
Guanine
-
Thymine
-
Cytosine
-
Uracil
Pregunta 2
Pregunta
What part of plant cells enable them to photosynthesize?
Respuesta
-
Chloroplasts
-
Mitochondria
-
Nucleus
-
Vacuole
Pregunta 3
Pregunta
Which of these features do only bacteria cells have?
Respuesta
-
Cell Wall
-
Flagellum
-
Cytoplasm
Pregunta 4
Pregunta
Which 2 scientists constructed the model of the DNA molecule?
Respuesta
-
Rosalind Franklin and Maurice Wilkin
-
James Watson and Maurice Wilkin
-
Rosalind Franklin and Francis Crick
-
James Watson and Francis Crick
Pregunta 5
Pregunta
Where in a cell are proteins made?
Respuesta
-
Ribosomes
-
Nucleus
-
Mitochondria
-
Chloroplasts
Pregunta 6
Pregunta
During the transcription process of Protein Synthesis, adenine is replaced with uracil
Respuesta
- True
- False
Pregunta 7
Pregunta
what is the name of the stage in protein synthesis where the mRNA is read a codon at a time at the ribosomes?
Respuesta
-
Transcription
-
Translation
Pregunta 8
Pregunta
During protein synthesis what does tNRA bring to the ribosome?
Respuesta
-
Amino acids
-
Proteins
-
Red blood cells
-
mRNA
Pregunta 9
Pregunta
A change to an organism's DNA base sequence is know as what?
Respuesta
-
A mutation
-
A characteristic
-
Variation
-
Genes
Pregunta 10
Pregunta
mutations can only be harmful
Respuesta
- True
- False
Pregunta 11
Pregunta
If it's too hot enzymes will die
Respuesta
- True
- False
Pregunta 12
Pregunta
The optimum temperature for most human enzymes is what?
Respuesta
-
37 degrees celsius
-
36 degrees celsius
-
36.5 degrees celsius
-
38 degrees celsius
Pregunta 13
Pregunta
which factors can potentially denature enzymes?
Respuesta
-
temperature
-
substrate concentration
-
light intensity
-
pH level
Pregunta 14
Pregunta
which is a positive about the Human Genome Project?
Respuesta
-
Increased Stress
-
Accurate Diagnosis
-
Discrimination from insurers
-
increase crop yield
Pregunta 15
Pregunta
which of these are negatives about the Human Genome Project?
Respuesta
-
People with genetic problems could come under pressure to not have children
-
doctors know what genes cause what illnesses so we could get better diagnosis'
-
Employers might discriminate against people who are genetically more likely to get a disease
-
Life insurance would be hard or expensive to get if you're genetically susceptible to diseases
Pregunta 16
Pregunta
in genetic engineering what is used to cut genes out of an organism's chromosome?
Respuesta
-
enzymes
-
scissors
-
lasers
-
bacteria
Pregunta 17
Pregunta
what is the specific name for enzymes that cut the DNA?
Respuesta
-
lysozyme enzymes
-
restriction enzymes
-
DNA- enzymes
-
separating enzymes
Pregunta 18
Pregunta
which of these are benefits of genetic engineering?
Respuesta
-
Reducing vitamin A deficiency- GE rice called Golden Rice contain genes that create Beta- Carotene which helps with Vitamin A deficiency
-
Reduces biodiversity
-
increases crop yield
-
produce human insulin on a commercial scale
Pregunta 19
Pregunta
a negative of Genetic Engineered food is that people are concerned we could develop allergies to them
Respuesta
- True
- False
Pregunta 20
Pregunta
Mitosis results in 2 haploid daughter cells
Respuesta
- True
- False
Pregunta 21
Pregunta
what does Mitosis create?
Respuesta
-
2 diploid daughter cells
-
2 diploid daughter cells that are genetically identical
-
4 haploid daughter cells that are genetically identical
-
2 haploid daughter cells
Pregunta 22
Pregunta
a cell created from mitosis will have 23 pairs of chromosomes
Respuesta
- True
- False
Pregunta 23
Pregunta
Mitosis is sexual reproduction
Respuesta
- True
- False
Pregunta 24
Pregunta
a haploid cell has how many chromosomes?
Respuesta
-
23 pairs
-
23
-
46
-
15
Pregunta 25
Pregunta
Meiosis has 2 divisions
Respuesta
- True
- False
Pregunta 26
Pregunta
cells produced from Mitosis are genetically identical
Respuesta
- True
- False
Pregunta 27
Pregunta
cells produced from meiosis are genetically identical
Respuesta
- True
- False
Pregunta 28
Pregunta
Is meiosis sexual or asexual reproduction
Respuesta
-
asexual
-
sexual
Pregunta 29
Pregunta
in cloning, when the nucleus of a cell is removed it is...
Respuesta
-
enucleated
-
de-nucleated
-
nucleised
-
remonucleated
Pregunta 30
Pregunta
what is given to the cell during cloning in order to stimulate it and make it divide
Respuesta
-
an electric shock
-
Heat radiation
-
ultra-sonic vibrations
-
a prod
Pregunta 31
Pregunta
cloning could provide organs for organ transplants
Respuesta
- True
- False
Pregunta 32
Pregunta
cloning could help endangered species
Respuesta
- True
- False
Pregunta 33
Pregunta
if clones were exposed to a new disease, the entire population could be wiped out
Respuesta
- True
- False
Pregunta 34
Pregunta
there are only embryonic stem cells
Respuesta
- True
- False
Pregunta 35
Pregunta
where can adult stem cells be found
Respuesta
-
muscle tissue
-
bone marrow
-
skin
-
saliva
Pregunta 36
Pregunta
the process of a stem cell becoming specialised is known as what?
Respuesta
-
differentiation
-
specialisation
-
specification
-
differing
Pregunta 37
Pregunta
Embryonic stem cells are
Respuesta
-
multi-potent
-
pluri-potent
Pregunta 38
Pregunta
adult stem cells are
Respuesta
-
multi-potent
-
pluri-potent
Pregunta 39
Pregunta
Cytosine pairs with Thymine
Respuesta
- True
- False
Pregunta 40
Pregunta
when 2 gametes join they become a zygote
Respuesta
- True
- False
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