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GCSE BIOLOGY QUIZ - B1 YOU AND YOUR GENES

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Quiz on GCSE BIOLOGY QUIZ - B1 YOU AND YOUR GENES, created by iona.19 on 25/02/2015.
iona.19
Quiz by iona.19, updated more than 1 year ago
iona.19
Created by iona.19 about 9 years ago
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Resource summary

Question 1

Question
The nucleus contains your genetic material
Answer
  • True
  • False

Question 2

Question
How many chromosomes does the human cell nucleus contain?
Answer
  • 23
  • 23 pairs

Question 3

Question
What do chromosomes carry?
Answer
  • The nucleus
  • Genes
  • Proteins

Question 4

Question
A gene is a short length of a chromosome which is one molecule of DNA.
Answer
  • True
  • False

Question 5

Question
The DNA is coiled up to form the arms of the chromosome
Answer
  • True
  • False

Question 6

Question
What are alleles?
Answer
  • Different versions of the same gene
  • Identical versions of the same gene
  • Identical versions of different genes

Question 7

Question
Each gene is a code for making a certain protein
Answer
  • True
  • False

Question 8

Question
Having different versions of proteins means that we end up with...
Answer
  • Identical characteristics
  • Different characteristics

Question 9

Question
What are the different types of proteins?
Answer
  • Structural proteins
  • Enzymes
  • Alleles

Question 10

Question
What does an enzyme do?
Answer
  • Copy the cells in a gene
  • Contains genetic material
  • Control all the chemical reactions in an organism

Question 11

Question
Chromosomes come in pairs because we have two parents
Answer
  • True
  • False

Question 12

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

Question 13

Question
What happens to the chromosomes when the sperm fertilises the egg?
Answer
  • 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

Question 14

Question
The fertilised egg has 23 single chromosomes
Answer
  • True
  • False

Question 15

Question
The two chromosomes in a pair always carry the same genes
Answer
  • True
  • False

Question 16

Question
What does homozygous mean?
Answer
  • You have two alleles the same for that particular gene
  • You have two different alleles for that particular gene

Question 17

Question
What is heterozygous?
Answer
  • You have two different alleles for that particular gene
  • You have two alleles the same for that particular gene

Question 18

Question
Alleles that produce dominant characteristics are always shown with...
Answer
  • A small letter
  • A capital letter

Question 19

Question
Alleles that produce recessive characteristics are always shown with...
Answer
  • A capital letter
  • A small letter

Question 20

Question
All men have an X and a Y chromosome
Answer
  • True
  • False

Question 21

Question
All women have two Y chromosomes
Answer
  • True
  • False

Question 22

Question
What is the chance of having a boy or a girl?
Answer
  • 50:50. There is an equal chance
  • 70:30
  • It is always more likely to have a boy because of their Y chromosome

Question 23

Question
The gene that makes an embryo into a male causes a protein called...
Answer
  • Neuroplastin
  • Testis determining factor (TDF)
  • Glycosyltransferases

Question 24

Question
The gene 'Testis determining factor (TDF)' causes the development of ovaries
Answer
  • True
  • False

Question 25

Question
Which of these are lifestyle factors than can affect your health?
Answer
  • Smoking
  • Eating junk food
  • Your genes
  • Exercise

Question 26

Question
Clones are genetically identical organisms
Answer
  • True
  • False

Question 27

Question
Clones...
Answer
  • 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)

Question 28

Question
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.
Answer
  • True
  • False

Question 29

Question
Most bacteria reproduce asexually by dividing into two, and multiplying very quickly.
Answer
  • True
  • False

Question 30

Question
Plants cannot reproduce asexually
Answer
  • True
  • False

Question 31

Question
Identical twins are also clones.
Answer
  • True
  • False

Question 32

Question
How are identical twins made?
Answer
  • 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).

Question 33

Question
Scientists can make clones in the lab
Answer
  • True
  • False

Question 34

Question
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.
Answer
  • True
  • False

Question 35

Question
Genetic disorders are caused by faulty alleles
Answer
  • True
  • False

Question 36

Question
What are the symptoms of Cystic Fibrosis?
Answer
  • Thick, sticky mucus in the air passages, gut and pancreas
  • Shaking, erratic body movements
  • Mental deterioration

Question 37

Question
Cystic fibrosis is caused by a dominant allele
Answer
  • True
  • False

Question 38

Question
Cystic Fibrosis is a genetic disorder of the...
Answer
  • Heart
  • Lungs
  • Cell membranes
  • Cytoplasm

Question 39

Question
For a child to have a chance of inheriting Cystic Fibrosis, ___________ of the parents must be either carriers of sufferers.
Answer
  • none
  • both
  • one

Question 40

Question
Cystic Fibrosis... The baby will be normal if they have...
Answer
  • FF alleles
  • Ff alleles
  • ff alleles

Question 41

Question
Huntington's Disorder is caused by a recessive allele
Answer
  • True
  • False

Question 42

Question
Huntington's Disorder makes the body produce thick, sticky mucus in the air passages, gut and pancreas.
Answer
  • True
  • False

Question 43

Question
There is no cure for Huntington's Disorder
Answer
  • True
  • False

Question 44

Question
A "carrier" of Huntington's Disorder will be a sufferer
Answer
  • True
  • False

Question 45

Question
The symptoms of Huntington's Disorder appear around the age of 15
Answer
  • True
  • False

Question 46

Question
IVF = in vitro fertilisation
Answer
  • True
  • False

Question 47

Question
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.
Answer
  • True
  • False

Question 48

Question
What is it called when doctors test fetuses in the womb by testing the fluid surrounding the fetus?
Answer
  • IVF
  • Amniocentesis
  • That is not possible

Question 49

Question
Testing embryos for genetic disorders is known as...
Answer
  • Pre-implantation genetic diagnosis
  • Differentiation
  • Amniocentesis

Question 50

Question
Adults can be checked to see if they carry alleles for genetic disorders
Answer
  • True
  • False

Question 51

Question
What are the issues surrounding genetic testing?
Answer
  • 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

Question 52

Question
Gene therapy may soon make it possible to treat or prevent genetic disorders
Answer
  • True
  • False

Question 53

Question
What could be the problems of gene therapy?
Answer
  • 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

Question 54

Question
Stem cells are unspecialised
Answer
  • True
  • False

Question 55

Question
Differentiation is the process by which a cell changes to become specialised for its job.
Answer
  • True
  • False

Question 56

Question
Stem cells are found in early human embryos
Answer
  • True
  • False

Question 57

Question
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.
Answer
  • True
  • False

Question 58

Question
No research is allowed on embryos older than...
Answer
  • A week
  • 14 days
  • A month
  • A year

Question 59

Question
Scientists can extract stem cells from very early human embryos and grow them
Answer
  • True
  • False

Question 60

Question
How many genes determine which sex organs you develop?
Answer
  • 1
  • 2
  • 3
  • 4
  • 8
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