Answer:
B) Any child born of parents who are able to taste PTC will inherit the ability to taste PTC.
Explanation:
The ability to taste the chemical PTC (phenylthiocarbamide) contain some people who can and some people who cannot taste PTC. Despite the fact, this trait is often considered a simple Mendelian trait, i.e.one gene-two alleles.(a simple genetic trait governed by a pair of alleles).The reason why this trait has been kept going in the population is undetermined but polymorphism may influence food selection or nutritional status.
If we have two parents that are heterozygous for this PTC traits, if the cross, they will have the following types of offspring.
Let say; dominant T for tasting and recessive t for nontasting---- i.e Tt
If Tt crosses with Tt, we have;
T t
T TT Tt
t Tt tt
From the punnet square, we have the following offspring
TT (dominant PTC taster )
2 Tt ( heterozygous PTC taster)
tt (recessive Non- taster)
From, the foregoing, we can clearly see that the incorrect statement about the inheritance of the ability to taste the chemical PTC (phenylthiocarbamide) is Any child born of parents who are able to taste PTC will inherit the ability to taste PTC. This is because from the cross, it is not all children that inherit the ability to taste PTC.
Answer:
c) Alternative splicing
Explanation:
Eukaryotic genes have protein-coding sequences called exons and non-protein coding sequences called introns. Introns are removed from the primary transcript after transcription. Some sequences may serve as both introns and exons. These sequences may be removed as introns or may be retained as exons producing mRNA with different combinations of exons from the single primary transcript. The process of called alternative splicing and allows the formation of more than one mRNAs from a single gene.
Therefore, alternative splicing allows one protein-coding sequence to code for more than one type of related proteins. It does not allow to correlate the number of protein-coding genes with the total number of proteins produced by a species.
Answer:
the job of the nucleus is to control all of the cell's main activities.
Explanation:
Answer:
Biomass is the only renewable energy source that can be converted into liquid biofuels such as ethanol and biodiesel.
