Genetic Inheritance
If a dominant and recessive allele is present, which one would win?
The dominant allele
What are the 2 stages of proteinsynthesis?
Transcription and Translation
What is the definition of a population?
Many individuals of the same species
Which type of cell division gives you genetically identical cells?
Mitosis
Name a greenhouse gas
Carbon dioxide/Methane/CFCs/Water vapour
What is the function of a gene?
A section of the DNA that codes for a protein
Where in the cell does translation occur?
Ribosomes
What is the name of the square instrument used by scientists to count the number of plants in a field?
Quadrat
What is the purpose of meiosis?
reproduction/gamete formation/making haploid cells
What is the difference between global warming and climate change?
Global warming : rise in the earth's temperature
Climate change : Long term shifts in weather patterns and temperatures
If both parents are heterozygous for attached earlobes (recessive), what are the chances of the offspring having attached earlobes?
50% or 1/2 or 0.5
What is the name of the enzyme involved in transcription?
RNA polymerase
Why can you have a pyramid of numbers that isn't pyaramid shaped?
The number of organisms do not always correspond to the biomass, you can have one large organism that can sustain a higher level
What is algal bloom?
Overgrowth of algae due to run-off/leaching/too much fertilizers in water bodies
What is the difference between a gene and chromosome?
The gene is a section of the DNA, while the chromosome is condensed DNA.
What is the difference between a codon and an anticodon?
Codon = 3 bases on the mRNA
Anti-codon = 3 bases on the tRNA
Only 10% of energy gets passed up a trophic level. Give 2 reasons why.
Energy lost due to movement/respiration/excretion
Energy lost from undigested food/faeces
how many times is DNA replicated in both mitosis and meiosis?
once
Explain what happens to soil due to deforestation?
Soil erosion and leaching
What are the chances of a couple having 4 daughthers?
1/16 (1/2*1/2*1/2*1/2)
If the mRNA starts with the codon AUG, what are the bases at the same location of the template strand that it was made from?
TAC
What is the name of the organism that can convert nitrates into nitrogen gas?
Denitrifying bactria
What phase of mitosis has chromosomes lined up along the middle of the cell?
Metaphase
What is the difference between bioaccumulation and biomagnification?
Biomagnification : increase in concentration of toxic chemicals as you go up trophic levels