Genetic Inheritance
If a dominant and recessive allele is present, which one would win?
The dominant allele
What are the 2 stages of protein synthesis?
Transcription and Translation
What is the definition of a community?
many species in a common location
Which type of cell division gives you genetically different cells?
Meiosis
Name a greenhouse gas
Carbon dioxide/Methane/CFCs/Water vapour
What is a section of the DNA that codes for a protein?
gene
What are involved in translation?
tRNA, mRNA, Ribosome
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 mitosis?
asexual reproduction/replace and repair body cells /Growth/ making dipoild cells
What are the human activities that cause acid rain?
What are two gases responsible for acid rain?
Burning fossil fuels/manufacturing/oil refineries, electricity generation/and vehicles
Nitrogen oxide (NO2) and sulfur dioxide (SO2)
If both parents are heterozygous for blood type A, what are the chances of the offspring having blood typeO?
25% or 1/4 or 0.25
Where in the cell does transcription occur? and What is the name of the enzyme involved in transcription?
Transcription occurs in the nucleus. The RNA polymerase enzyme involved in transcription.
The pyramid of numbers isn't alway in pyaramid shaped.
True or Flase and Why?
True. The number of organisms do not always correspond to the biomass, you can have one large organism that can sustain a higher level
how many times is DNA replicated in both mitosis and meiosis?
once
What happens when fertilizers run-off water bodies?
Eutrophication/ Algal bloom
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
The nuclear membrane is formed after chromatid separation. What is the name of this stage?
Telophase
Explain what happens to water cycle due to deforestation?
less water vapor, less could, no rain/drought
What are the chances of a couple having 2 daughthers?
1/4 (1/2*1/2)
If the mRNA stop with the codon UAA, what are the bases at the same location of the template strand that it was made from?
ATT
What is the name of the organism that can convert nitrogen gas into nitrate ?
Nitrogen fixing bactria
What phase of mitosis has chromosomes lined up along the middle of the cell?
Metaphase
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