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Quiz on GCSE BIOLOGY QUIZ - B1 YOU AND YOUR GENES, created by iona.19 on 25/02/2015.

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GCSE BIOLOGY QUIZ - B1 YOU AND YOUR GENES

Question 1 of 60

1

The nucleus contains your genetic material

Select one of the following:

  • True
  • False

Explanation

Question 2 of 60

1

How many chromosomes does the human cell nucleus contain?

Select one or more of the following:

  • 23

  • 23 pairs

Explanation

Question 3 of 60

1

What do chromosomes carry?

Select one of the following:

  • The nucleus

  • Genes

  • Proteins

Explanation

Question 4 of 60

1

A gene is a short length of a chromosome which is one molecule of DNA.

Select one of the following:

  • True
  • False

Explanation

Question 5 of 60

1

The DNA is coiled up to form the arms of the chromosome

Select one of the following:

  • True
  • False

Explanation

Question 6 of 60

1

What are alleles?

Select one of the following:

  • Different versions of the same gene

  • Identical versions of the same gene

  • Identical versions of different genes

Explanation

Question 7 of 60

1

Each gene is a code for making a certain protein

Select one of the following:

  • True
  • False

Explanation

Question 8 of 60

1

Having different versions of proteins means that we end up with...

Select one or more of the following:

  • Identical characteristics

  • Different characteristics

Explanation

Question 9 of 60

1

What are the different types of proteins?

Select one or more of the following:

  • Structural proteins

  • Enzymes

  • Alleles

Explanation

Question 10 of 60

1

What does an enzyme do?

Select one or more of the following:

  • Copy the cells in a gene

  • Contains genetic material

  • Control all the chemical reactions in an organism

Explanation

Question 11 of 60

1

Chromosomes come in pairs because we have two parents

Select one of the following:

  • True
  • False

Explanation

Question 12 of 60

1

The sex cells (the sperm and the egg) are different from ordinary body cells because they contain 23 pairs of chromosomes

Select one of the following:

  • True
  • False

Explanation

Question 13 of 60

1

What happens to the chromosomes when the sperm fertilises the egg?

Select one of the following:

  • Half of the chromosomes in the egg combine with half of the chromosomes in the sperm

  • The chromosomes in the sperm combine with the chromosomes in the egg

Explanation

Question 14 of 60

1

The fertilised egg has 23 single chromosomes

Select one of the following:

  • True
  • False

Explanation

Question 15 of 60

1

The two chromosomes in a pair always carry the same genes

Select one of the following:

  • True
  • False

Explanation

Question 16 of 60

1

What does homozygous mean?

Select one of the following:

  • You have two alleles the same for that particular gene

  • You have two different alleles for that particular gene

Explanation

Question 17 of 60

1

What is heterozygous?

Select one of the following:

  • You have two different alleles for that particular gene

  • You have two alleles the same for that particular gene

Explanation

Question 18 of 60

1

Alleles that produce dominant characteristics are always shown with...

Select one of the following:

  • A small letter

  • A capital letter

Explanation

Question 19 of 60

1

Alleles that produce recessive characteristics are always shown with...

Select one of the following:

  • A capital letter

  • A small letter

Explanation

Question 20 of 60

1

All men have an X and a Y chromosome

Select one of the following:

  • True
  • False

Explanation

Question 21 of 60

1

All women have two Y chromosomes

Select one of the following:

  • True
  • False

Explanation

Question 22 of 60

1

What is the chance of having a boy or a girl?

Select one or more of the following:

  • 50:50. There is an equal chance

  • 70:30

  • It is always more likely to have a boy because of their Y chromosome

Explanation

Question 23 of 60

1

The gene that makes an embryo into a male causes a protein called...

Select one of the following:

  • Neuroplastin

  • Testis determining factor (TDF)

  • Glycosyltransferases

Explanation

Question 24 of 60

1

The gene 'Testis determining factor (TDF)' causes the development of ovaries

Select one of the following:

  • True
  • False

Explanation

Question 25 of 60

1

Which of these are lifestyle factors than can affect your health?

Select one or more of the following:

  • Smoking

  • Eating junk food

  • Your genes

  • Exercise

Explanation

Question 26 of 60

1

Clones are genetically identical organisms

Select one of the following:

  • True
  • False

Explanation

Question 27 of 60

1

Clones...

Select one or more of the following:

  • Have different alleles but the same genes

  • Have the same genes and the same alleles

  • Can differ due to differences in their environment (e.g. the amount of food available)

Explanation

Question 28 of 60

1

Some organisms reproduce asexually (without sexual reproduction). This means that there is only one parent, and the offspring are genetically the same as each other and the parent.

Select one of the following:

  • True
  • False

Explanation

Question 29 of 60

1

Most bacteria reproduce asexually by dividing into two, and multiplying very quickly.

Select one of the following:

  • True
  • False

Explanation

Question 30 of 60

1

Plants cannot reproduce asexually

Select one of the following:

  • True
  • False

Explanation

Question 31 of 60

1

Identical twins are also clones.

Select one of the following:

  • True
  • False

Explanation

Question 32 of 60

1

How are identical twins made?

Select one of the following:

  • The embryo splits into four and they are all genetically identical

  • The embryo splits into two, and two separate embryos begin to develop. (They are genetically identical).

Explanation

Question 33 of 60

1

Scientists can make clones in the lab

Select one of the following:

  • True
  • False

Explanation

Question 34 of 60

1

Clones are made in the lab by removing the nucleus of an egg cell to form an enucleated cell, this leaves the egg without any genetic information. A nucleus from an adult donor cell is inserted in its place. The cell is then stimulated so that it starts dividing as if it was a normal embryo (fertilised egg). The embryo produced is genetically identical to the donor cell.

Select one of the following:

  • True
  • False

Explanation

Question 35 of 60

1

Genetic disorders are caused by faulty alleles

Select one of the following:

  • True
  • False

Explanation

Question 36 of 60

1

What are the symptoms of Cystic Fibrosis?

Select one or more of the following:

  • Thick, sticky mucus in the air passages, gut and pancreas

  • Shaking, erratic body movements

  • Mental deterioration

Explanation

Question 37 of 60

1

Cystic fibrosis is caused by a dominant allele

Select one of the following:

  • True
  • False

Explanation

Question 38 of 60

1

Cystic Fibrosis is a genetic disorder of the...

Select one of the following:

  • Heart

  • Lungs

  • Cell membranes

  • Cytoplasm

Explanation

Question 39 of 60

1

For a child to have a chance of inheriting Cystic Fibrosis, ___________ of the parents must be either carriers of sufferers.

Select one of the following:

  • none

  • both

  • one

Explanation

Question 40 of 60

1

Cystic Fibrosis... The baby will be normal if they have...

Select one of the following:

  • FF alleles

  • Ff alleles

  • ff alleles

Explanation

Question 41 of 60

1

Huntington's Disorder is caused by a recessive allele

Select one of the following:

  • True
  • False

Explanation

Question 42 of 60

1

Huntington's Disorder makes the body produce thick, sticky mucus in the air passages, gut and pancreas.

Select one of the following:

  • True
  • False

Explanation

Question 43 of 60

1

There is no cure for Huntington's Disorder

Select one of the following:

  • True
  • False

Explanation

Question 44 of 60

1

A "carrier" of Huntington's Disorder will be a sufferer

Select one of the following:

  • True
  • False

Explanation

Question 45 of 60

1

The symptoms of Huntington's Disorder appear around the age of 15

Select one of the following:

  • True
  • False

Explanation

Question 46 of 60

1

IVF = in vitro fertilisation

Select one of the following:

  • True
  • False

Explanation

Question 47 of 60

1

Doctors produce more embryos than they need during IVF. The embryos are screened and only healthy ones are chosen to be implanted into the mother's womb.

Select one of the following:

  • True
  • False

Explanation

Question 48 of 60

1

What is it called when doctors test fetuses in the womb by testing the fluid surrounding the fetus?

Select one of the following:

  • IVF

  • Amniocentesis

  • That is not possible

Explanation

Question 49 of 60

1

Testing embryos for genetic disorders is known as...

Select one of the following:

  • Pre-implantation genetic diagnosis

  • Differentiation

  • Amniocentesis

Explanation

Question 50 of 60

1

Adults can be checked to see if they carry alleles for genetic disorders

Select one of the following:

  • True
  • False

Explanation

Question 51 of 60

1

What are the issues surrounding genetic testing?

Select one or more of the following:

  • No genetic tests are 100% accurate. There are always some errors due to things like samples getting contaminated or misinterpretation.

  • Tests carried out during pregnancy aren't 100% safe

  • Genetic testing can only take place after birth

  • You're not allowed to have children after being tested

  • Insurance companies might refuse to give life insurance to people with the "wrong" alleles

  • If the information becomes available to others, this might cause discrimination

Explanation

Question 52 of 60

1

Gene therapy may soon make it possible to treat or prevent genetic disorders

Select one of the following:

  • True
  • False

Explanation

Question 53 of 60

1

What could be the problems of gene therapy?

Select one or more of the following:

  • Some people have concerns about 'playing God'

  • Gene therapies carry risks. There are concerns that they could even cause cancers instead of preventing them.

  • There isn't any problems with gene therapy

Explanation

Question 54 of 60

1

Stem cells are unspecialised

Select one of the following:

  • True
  • False

Explanation

Question 55 of 60

1

Differentiation is the process by which a cell changes to become specialised for its job.

Select one of the following:

  • True
  • False

Explanation

Question 56 of 60

1

Stem cells are found in early human embryos

Select one of the following:

  • True
  • False

Explanation

Question 57 of 60

1

People with some blood diseases can be treated by bone marrow transplants. Bone marrow contains stem cells that can turn into new blood cells to replace the faulty old ones.

Select one of the following:

  • True
  • False

Explanation

Question 58 of 60

1

No research is allowed on embryos older than...

Select one of the following:

  • A week

  • 14 days

  • A month

  • A year

Explanation

Question 59 of 60

1

Scientists can extract stem cells from very early human embryos and grow them

Select one of the following:

  • True
  • False

Explanation

Question 60 of 60

1

How many genes determine which sex organs you develop?

Select one of the following:

  • 1

  • 2

  • 3

  • 4

  • 8

Explanation

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