WorksheetsTopic 2 - Genes and Health
Total questions: 46
Worksheet time: 33mins
CF, stands for which genetic disease
(a)
What does a DNA nulceotide consist of?
A base
Phosphate group
Deoxyribose sugar
(Pentose sugar)
Ribose Sugar
(Pentose Sugar)
What are the four bases in DNA?
Uracil
Adenine
Thymine
Cytosine
Guanine
What is the DNA base pair for Adenine
(a)
What is the DNA base pair for Cytosine?
(a)
How many hydrogen bonds can Adenine form with its base pair?
(a)
How many hydrogen bonds can Guanine form with its base pair?
(a)
What type of bond binds the sugar and phosphate groups of DNA nucelotides?
Amide bond
Phosphodiester bond
Peptide bond
Ester bond
What are the four bases in RNA?
Uracil
Adenine
Thymine
Cytosine
Guanine
What does an RNA nulceotide consist of?
A base
Phosphate group
Deoxyribose sugar
(Pentose sugar)
Ribose Sugar
(Pentose Sugar)
How many bases make a codon?
(a)
Which enzyme unzips the DNA helix in transcription?
RNA polymerase
DNA polymerase
RNA helicase
DNA helicase
What type of bond binds two amino acids?
Amide bond
Phosphodiester bond
Peptide bond
Ester bond
Which enzyme unzips the DNA helix in DNA replication?
RNA polymerase
DNA polymerase
RNA helicase
DNA helicase
Which enzyme reform the phosphodiester bonds in DNA replication?
RNA polymerase
DNA polymerase
RNA helicase
DNA helicase
Which enzyme forms the phosphodiester bonds between nucleotides in transcription?
RNA polymerase
DNA polymerase
RNA helicase
DNA helicase
What is the animal cell membrane made of?
Phospholipid bilayer
Phosphodiester layer
Cellulose bilayer
Glucose bilayer
Which two are true, regarding the phospolipid bilayer in the cell membrane?
Hydrophobic head
Hydrophobic tail
Hydrophilic head
Hydrophilic tail
What would make the cell membrane bilayer, more fluid?
More unsaturated fats
More saturated fats
More bonding between molecules
Fewer proteins
What type of molecules can pass through the cell membrane via passive transport?
Non-polar molecules
Polar molecules
Negatively charged molecules
Large molecules
What type of diffusion requires transport proteins?
(a)
What type of molecules cannot pass through the cell membrane via passive transport?
Non-polar molecules
Polar molecules
Negatively charged molecules
Large molecules
Which of these affect the rate of diffusion?
Temperature
Conc gradient
Surface area
Stirring motion
Size of molecules
The mass diffusion of molecules out of the cell
(a)
The mass diffusion of molecules into the cell
(a)
Definition: Sequence of bases in DNA coding for a specific sequence of amino acids
(a)
Which is more likely to get a recessive disease?
Males
Females
What type of allele disease is CF?
(a)
What is the molecule that provides energy for active transport?
(a)
During endocytosis and exocytosis, what are substance contained in?
Vesicles
Nucleus
Mitochondria
Phospholipid bilayer
How are lungs adapted for gas exchange?
Rich supply of blood
Large surface area (alveoli)
Thin cell walls
High conc gradient between inside and outside
What does mucus in the lungs catch?
Dust
Microbes
Chloride ions
Oxygen
What beats up the mucus, allowing it to be swallowed or coughed out?
Cilia
Pili
Flagella
Myosin heads
If mucus becomes sticky and blcoks the bronchioles, what is decreased?
Surface area for gas exchange
Diffusion distance for gas exchange
Blood supply
Heart rate
Which gene is affected by cystic fibrosis?
CFTR
NaTR
QCRS
CTFR
Which ion goes through the CFTR protein?
(a)
Which channel protein is permanently open when someone has cystic fibrosis?
Sodium channel (Na+)
CFTR channel
When someone has cystic firbrosis, water is constantly taken out of the mucus, due to osmosis has it goes to...
the high salt conc
high sodium conc
high chlorine conc
low chlorine conc
Which of these tests are done prenattally?
Aminocentesis
Chronic Villus Samping (CVS)
Non-invasive Prenatal Diagnosis
Pre-implantation gentic Diagnosis
Which of these gentic testing procedures, requires a needle to be inserted into the abdomen?
Aminocentesis
Chronic Villus Samping (CVS)
Non-invasive Prenatal Diagnosis
Pre-implantation gentic Diagnosis
Which of these gentic testing procedures, has the highest risk of miscarriage?
Aminocentesis
Chronic Villus Samping (CVS)
Non-invasive Prenatal Diagnosis
Pre-implantation gentic Diagnosis
Which of these gentic testing procedures, is done at 15-17 weeks pregnancy?
Aminocentesis
Chronic Villus Samping (CVS)
Non-invasive Prenatal Diagnosis
Pre-implantation gentic Diagnosis
Which of these gentic testing procedures, is done at 8-10 weeks pregnancy?
Aminocentesis
Chronic Villus Samping (CVS)
Non-invasive Prenatal Diagnosis
Pre-implantation gentic Diagnosis
Which of these gentic testing procedures, samples the blood of the mother to find fetal DNA?
Aminocentesis
Chronic Villus Samping (CVS)
Non-invasive Prenatal Diagnosis
Pre-implantation gentic Diagnosis
What is the sum of all enzyme controlled reactions?
(a)
What can alter the rate of reaction on enzyme catalysed reactions?
pH
Temperature
Conc of enzyme/substrate
Water conc
