The length of time required for half of the radioactive atoms in a sample to decay is its
2 answers:
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Answer:
i) Genotype of Parent 1= TTpp
Genotype of Parent 2= ttPP
ii) The genotypes of their gametes
Parent 1= Tp
Parent 2= tP
iii) F1 generation = All TtPp (tall and purple flower)
iv) F2 phenotype ratio= 9 tall, purple: 3 tall, white: 3 dwarf, purple : 1 dwarf, white.
F2 Genotype ratio= 1:2:1:2:4:2:1:2:1
Explanation:
Let's assume that allele "T" gives tall plants while allele "t" imparts dwarfism. Likewise, the dominant allele "P" is responsible for purple flowers while recessive allele "p" gives white flowers.
i) Genotype of Parent 1—Tall plant with white flowers (pure breeding)= TTpp
Genotype of Parent 2—Dwarf plant with purple flowers (pure breeding)= ttPP
ii) The genotypes of their gametes
Parent 1= Tp
Parent 2= tP
iii) F1 generation = All TtPp (tall and purple flower)
iv) Each of the F1 plant with TtPp genotype will form four types of gametes= TP, Tp, tP and tP
A cross between TtPp x TtPp gives F2 progeny in following ratio=
F2 generation phenotype ratio= 9 tall, purple: 3 tall, white: 3 dwarf, purple : 1 dwarf, white.
Genotype ratio= 1:2:1:2:4:2:1:2:1
Answer:
The correct answer is C and Engelmann conducted this experiment to prove relationship between algae and the rate of photosynthesis.
Explanation: First we must talk about 3 facts:
1) Prism scatters the white light into different wavelengths.
2) Photosynthesis, 6 carbon dioxide and 6 water molecules are consumed and 6 oxygen and 1 sugar molecule is synthesized using light energy.
6CO2 + 6H2O → C6H12O6 + 6O2
3) Aerobic bacteria breaks down sugar while using oxygen and produces water and carbon dioxide in simplified terms.
So with this experimental setup a researcher can understand the rate of the photosynthesis by increased accumulation of aerobic bacteria near algae in certain wavelengths since they uses oxygen and tend to move close to the oxygen source (<u>see figure</u>). In this experiment there are no ways to measure heat (B), there is no known relation between wavelength of light and aerobic respiration since it can happen even in the dark (A) and finally there are no ways to measure carbon dioxide (D).
