science inheritance and body defence Flashcards
What is a genotype?
The total of genes transmitted from human to offspring
What is a phenotype?
The appearance of a characteristic
How many forms of a gene does a zygote receive from each parent?
One
In a normal human body how many matching sets of chromosomes can be found?
Two matching sets
What are the four base sequences of DNA?
Guanine
Cytosine
Adenine
Thiamine
What is a chromosome?
A single strand of DNA
What are microorganisms?
Very tiny living things
What are gametes?
The male and female sex cells
What are microbes?
Tiny organisms that are too small, to see without a microscope
What are pathogens?
Microorganisms that can cause disease
How do you make beer?
Glucose+water+active yeast solution+ hops=beer
How do you control dangerous bacteria?
By using bleach, detergent and hot water
What is your bodies first line of defence against germs?
Skin
What are antibodies produced to attack?
Antigens
What is the mmr vaccination?
Mumps, measles and rubella
