Answer:
The correct answer is Sugar and oxygen gas.
Explanation:
Photosynthesis is an important physiological process occur in plants.Photosynthesis is grouped into two reactions one is light reaction that occur in thylakoid membrane of grana and the other is dark reaction that occur inside stroma of chloroplast.
In the light reaction water is splited by the presence of light to generate oxygen.
Glucose the the principle product of photosynthesis is synthesized in the dark reaction by CO2 fixation.
Answer:
The gene for the protein is turned on and off at different times.
Explanation:
The turning on and off of the gene is described as gene regulation. This process is important because it enables the cells to react quickly to the changes in the environment.
Note that , this process mostly occur at transcription level during gene expression , and help in determining the amount of protein made by a gene.
This is due to the fact that only homologous chromosomes would have identical genes located at identical sites on those chromosomes. Otherwise, there would be no connection between the alleles of various genes.
Although the genes and loci of the two members of the homologous pair are similar, the alleles may vary.For instance, both allele possess the genes responsible for the attribute of eye colour. While the one has alleles for the blue-eye trait, other has alleles for the brown-eye trait. The homologous chromosomes are said to be heterozygous in this instance since the alleles are different.
On the other hand, when both alleles for a gene that codes for the blue-eye phenotype are present, it is said to be homozygous.
To learn more about homologous chromosomes click here
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