hchen8nrd
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40 question quiz on B2 topic 1. any comments on how to improve it or what other quizzes you'd like are welcomed. :)

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hchen8nrd
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Edexcel Additional Science Biology Topic 1- Genes and Enzymes

Question 1 of 40

1

What base pairs with Adenine?

Select one of the following:

  • Guanine

  • Thymine

  • Cytosine

  • Uracil

Explanation

Question 2 of 40

1

What part of plant cells enable them to photosynthesize?

Select one of the following:

  • Chloroplasts

  • Mitochondria

  • Nucleus

  • Vacuole

Explanation

Question 3 of 40

1

Which of these features do only bacteria cells have?

Select one of the following:

  • Cell Wall

  • Flagellum

  • Cytoplasm

Explanation

Question 4 of 40

1

Which 2 scientists constructed the model of the DNA molecule?

Select one of the following:

  • Rosalind Franklin and Maurice Wilkin

  • James Watson and Maurice Wilkin

  • Rosalind Franklin and Francis Crick

  • James Watson and Francis Crick

Explanation

Question 5 of 40

1

Where in a cell are proteins made?

Select one of the following:

  • Ribosomes

  • Nucleus

  • Mitochondria

  • Chloroplasts

Explanation

Question 6 of 40

1

During the transcription process of Protein Synthesis, adenine is replaced with uracil

Select one of the following:

  • True
  • False

Explanation

Question 7 of 40

1

what is the name of the stage in protein synthesis where the mRNA is read a codon at a time at the ribosomes?

Select one or more of the following:

  • Transcription

  • Translation

Explanation

Question 8 of 40

1

During protein synthesis what does tNRA bring to the ribosome?

Select one or more of the following:

  • Amino acids

  • Proteins

  • Red blood cells

  • mRNA

Explanation

Question 9 of 40

1

A change to an organism's DNA base sequence is know as what?

Select one or more of the following:

  • A mutation

  • A characteristic

  • Variation

  • Genes

Explanation

Question 10 of 40

1

mutations can only be harmful

Select one of the following:

  • True
  • False

Explanation

Question 11 of 40

1

If it's too hot enzymes will die

Select one of the following:

  • True
  • False

Explanation

Question 12 of 40

1

The optimum temperature for most human enzymes is what?

Select one of the following:

  • 37 degrees celsius

  • 36 degrees celsius

  • 36.5 degrees celsius

  • 38 degrees celsius

Explanation

Question 13 of 40

1

which factors can potentially denature enzymes?

Select one or more of the following:

  • temperature

  • substrate concentration

  • light intensity

  • pH level

Explanation

Question 14 of 40

1

which is a positive about the Human Genome Project?

Select one of the following:

  • Increased Stress

  • Accurate Diagnosis

  • Discrimination from insurers

  • increase crop yield

Explanation

Question 15 of 40

1

which of these are negatives about the Human Genome Project?

Select one or more of the following:

  • 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

Explanation

Question 16 of 40

1

in genetic engineering what is used to cut genes out of an organism's chromosome?

Select one of the following:

  • enzymes

  • scissors

  • lasers

  • bacteria

Explanation

Question 17 of 40

1

what is the specific name for enzymes that cut the DNA?

Select one of the following:

  • lysozyme enzymes

  • restriction enzymes

  • DNA- enzymes

  • separating enzymes

Explanation

Question 18 of 40

1

which of these are benefits of genetic engineering?

Select one or more of the following:

  • 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

Explanation

Question 19 of 40

1

a negative of Genetic Engineered food is that people are concerned we could develop allergies to them

Select one of the following:

  • True
  • False

Explanation

Question 20 of 40

1

Mitosis results in 2 haploid daughter cells

Select one of the following:

  • True
  • False

Explanation

Question 21 of 40

1

what does Mitosis create?

Select one of the following:

  • 2 diploid daughter cells

  • 2 diploid daughter cells that are genetically identical

  • 4 haploid daughter cells that are genetically identical

  • 2 haploid daughter cells

Explanation

Question 22 of 40

1

a cell created from mitosis will have 23 pairs of chromosomes

Select one of the following:

  • True
  • False

Explanation

Question 23 of 40

1

Mitosis is sexual reproduction

Select one of the following:

  • True
  • False

Explanation

Question 24 of 40

1

a haploid cell has how many chromosomes?

Select one or more of the following:

  • 23 pairs

  • 23

  • 46

  • 15

Explanation

Question 25 of 40

1

Meiosis has 2 divisions

Select one of the following:

  • True
  • False

Explanation

Question 26 of 40

1

cells produced from Mitosis are genetically identical

Select one of the following:

  • True
  • False

Explanation

Question 27 of 40

1

cells produced from meiosis are genetically identical

Select one of the following:

  • True
  • False

Explanation

Question 28 of 40

1

Is meiosis sexual or asexual reproduction

Select one of the following:

  • asexual

  • sexual

Explanation

Question 29 of 40

1

in cloning, when the nucleus of a cell is removed it is...

Select one of the following:

  • enucleated

  • de-nucleated

  • nucleised

  • remonucleated

Explanation

Question 30 of 40

1

what is given to the cell during cloning in order to stimulate it and make it divide

Select one of the following:

  • an electric shock

  • Heat radiation

  • ultra-sonic vibrations

  • a prod

Explanation

Question 31 of 40

1

cloning could provide organs for organ transplants

Select one of the following:

  • True
  • False

Explanation

Question 32 of 40

1

cloning could help endangered species

Select one of the following:

  • True
  • False

Explanation

Question 33 of 40

1

if clones were exposed to a new disease, the entire population could be wiped out

Select one of the following:

  • True
  • False

Explanation

Question 34 of 40

1

there are only embryonic stem cells

Select one of the following:

  • True
  • False

Explanation

Question 35 of 40

1

where can adult stem cells be found

Select one of the following:

  • muscle tissue

  • bone marrow

  • skin

  • saliva

Explanation

Question 36 of 40

1

the process of a stem cell becoming specialised is known as what?

Select one of the following:

  • differentiation

  • specialisation

  • specification

  • differing

Explanation

Question 37 of 40

1

Embryonic stem cells are

Select one of the following:

  • multi-potent

  • pluri-potent

Explanation

Question 38 of 40

1

adult stem cells are

Select one of the following:

  • multi-potent

  • pluri-potent

Explanation

Question 39 of 40

1

Cytosine pairs with Thymine

Select one of the following:

  • True
  • False

Explanation

Question 40 of 40

1

when 2 gametes join they become a zygote

Select one of the following:

  • True
  • False

Explanation

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