2126912
Pregunta 1
Pregunta
The nucleus contains your genetic material
Respuesta
- True
- False
Pregunta 2
Pregunta
How many chromosomes does the human cell nucleus contain?
Respuesta
-
23
-
23 pairs
Pregunta 3
Pregunta
What do chromosomes carry?
Respuesta
-
The nucleus
-
Genes
-
Proteins
Pregunta 4
Pregunta
A gene is a short length of a chromosome which is one molecule of DNA.
Respuesta
- True
- False
Pregunta 5
Pregunta
The DNA is coiled up to form the arms of the chromosome
Respuesta
- True
- False
Pregunta 6
Pregunta
What are alleles?
Respuesta
-
Different versions of the same gene
-
Identical versions of the same gene
-
Identical versions of different genes
Pregunta 7
Pregunta
Each gene is a code for making a certain protein
Respuesta
- True
- False
Pregunta 8
Pregunta
Having different versions of proteins means that we end up with...
Respuesta
-
Identical characteristics
-
Different characteristics
Pregunta 9
Pregunta
What are the different types of proteins?
Respuesta
-
Structural proteins
-
Enzymes
-
Alleles
Pregunta 10
Pregunta
What does an enzyme do?
Respuesta
-
Copy the cells in a gene
-
Contains genetic material
-
Control all the chemical reactions in an organism
Pregunta 11
Pregunta
Chromosomes come in pairs because we have two parents
Respuesta
- True
- False
Pregunta 12
Pregunta
The sex cells (the sperm and the egg) are different from ordinary body cells because they contain 23 pairs of chromosomes
Respuesta
- True
- False
Pregunta 13
Pregunta
What happens to the chromosomes when the sperm fertilises the egg?
Respuesta
-
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
Pregunta 14
Pregunta
The fertilised egg has 23 single chromosomes
Respuesta
- True
- False
Pregunta 15
Pregunta
The two chromosomes in a pair always carry the same genes
Respuesta
- True
- False
Pregunta 16
Pregunta
What does homozygous mean?
Respuesta
-
You have two alleles the same for that particular gene
-
You have two different alleles for that particular gene
Pregunta 17
Pregunta
What is heterozygous?
Respuesta
-
You have two different alleles for that particular gene
-
You have two alleles the same for that particular gene
Pregunta 18
Pregunta
Alleles that produce dominant characteristics are always shown with...
Respuesta
-
A small letter
-
A capital letter
Pregunta 19
Pregunta
Alleles that produce recessive characteristics are always shown with...
Respuesta
-
A capital letter
-
A small letter
Pregunta 20
Pregunta
All men have an X and a Y chromosome
Respuesta
- True
- False
Pregunta 21
Pregunta
All women have two Y chromosomes
Respuesta
- True
- False
Pregunta 22
Pregunta
What is the chance of having a boy or a girl?
Respuesta
-
50:50. There is an equal chance
-
70:30
-
It is always more likely to have a boy because of their Y chromosome
Pregunta 23
Pregunta
The gene that makes an embryo into a male causes a protein called...
Respuesta
-
Neuroplastin
-
Testis determining factor (TDF)
-
Glycosyltransferases
Pregunta 24
Pregunta
The gene 'Testis determining factor (TDF)' causes the development of ovaries
Respuesta
- True
- False
Pregunta 25
Pregunta
Which of these are lifestyle factors than can affect your health?
Respuesta
-
Smoking
-
Eating junk food
-
Your genes
-
Exercise
Pregunta 26
Pregunta
Clones are genetically identical organisms
Respuesta
- True
- False
Pregunta 27
Pregunta
Clones...
Respuesta
-
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)
Pregunta 28
Pregunta
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.
Respuesta
- True
- False
Pregunta 29
Pregunta
Most bacteria reproduce asexually by dividing into two, and multiplying very quickly.
Respuesta
- True
- False
Pregunta 30
Pregunta
Plants cannot reproduce asexually
Respuesta
- True
- False
Pregunta 31
Pregunta
Identical twins are also clones.
Respuesta
- True
- False
Pregunta 32
Pregunta
How are identical twins made?
Respuesta
-
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).
Pregunta 33
Pregunta
Scientists can make clones in the lab
Respuesta
- True
- False
Pregunta 34
Pregunta
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.
Respuesta
- True
- False
Pregunta 35
Pregunta
Genetic disorders are caused by faulty alleles
Respuesta
- True
- False
Pregunta 36
Pregunta
What are the symptoms of Cystic Fibrosis?
Respuesta
-
Thick, sticky mucus in the air passages, gut and pancreas
-
Shaking, erratic body movements
-
Mental deterioration
Pregunta 37
Pregunta
Cystic fibrosis is caused by a dominant allele
Respuesta
- True
- False
Pregunta 38
Pregunta
Cystic Fibrosis is a genetic disorder of the...
Respuesta
-
Heart
-
Lungs
-
Cell membranes
-
Cytoplasm
Pregunta 39
Pregunta
For a child to have a chance of inheriting Cystic Fibrosis, ___________ of the parents must be either carriers of sufferers.
Respuesta
-
none
-
both
-
one
Pregunta 40
Pregunta
Cystic Fibrosis... The baby will be normal if they have...
Respuesta
-
FF alleles
-
Ff alleles
-
ff alleles
Pregunta 41
Pregunta
Huntington's Disorder is caused by a recessive allele
Respuesta
- True
- False
Pregunta 42
Pregunta
Huntington's Disorder makes the body produce thick, sticky mucus in the air passages, gut and pancreas.
Respuesta
- True
- False
Pregunta 43
Pregunta
There is no cure for Huntington's Disorder
Respuesta
- True
- False
Pregunta 44
Pregunta
A "carrier" of Huntington's Disorder will be a sufferer
Respuesta
- True
- False
Pregunta 45
Pregunta
The symptoms of Huntington's Disorder appear around the age of 15
Respuesta
- True
- False
Pregunta 46
Pregunta
IVF = in vitro fertilisation
Respuesta
- True
- False
Pregunta 47
Pregunta
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.
Respuesta
- True
- False
Pregunta 48
Pregunta
What is it called when doctors test fetuses in the womb by testing the fluid surrounding the fetus?
Respuesta
-
IVF
-
Amniocentesis
-
That is not possible
Pregunta 49
Pregunta
Testing embryos for genetic disorders is known as...
Respuesta
-
Pre-implantation genetic diagnosis
-
Differentiation
-
Amniocentesis
Pregunta 50
Pregunta
Adults can be checked to see if they carry alleles for genetic disorders
Respuesta
- True
- False
Pregunta 51
Pregunta
What are the issues surrounding genetic testing?
Respuesta
-
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
Pregunta 52
Pregunta
Gene therapy may soon make it possible to treat or prevent genetic disorders
Respuesta
- True
- False
Pregunta 53
Pregunta
What could be the problems of gene therapy?
Respuesta
-
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
Pregunta 54
Pregunta
Stem cells are unspecialised
Respuesta
- True
- False
Pregunta 55
Pregunta
Differentiation is the process by which a cell changes to become specialised for its job.
Respuesta
- True
- False
Pregunta 56
Pregunta
Stem cells are found in early human embryos
Respuesta
- True
- False
Pregunta 57
Pregunta
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.
Respuesta
- True
- False
Pregunta 58
Pregunta
No research is allowed on embryos older than...
Respuesta
-
A week
-
14 days
-
A month
-
A year
Pregunta 59
Pregunta
Scientists can extract stem cells from very early human embryos and grow them
Respuesta
- True
- False
Pregunta 60
Pregunta
How many genes determine which sex organs you develop?
Respuesta
-
1
-
2
-
3
-
4
-
8
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