False. A threat is a possible danger. Vulnerability is a weakness.
Biological magnification, or biomagnification, occurs when pollutants taken up by organisms at the base of the food chain reach high concentrations in the bodies of animals at the top of the food chain. Effects of biomagnification vary widely depending on the pollutant, organism and ecosystem in question.
Answer:
So none of the option is correct.
Explanation:
As we know the transcription occurs in 5' to 3' direction so 3'-5' work as a template strand for the transcription and the mRNA formed will be :-
5' CCC AGC CUA GCC UUU GCA AGA GGC CAU AUC GAC 3'
Here there is no start codon( AUG) for translation.
So none of the option is correct.
There might be error in the nucleotide sequence.
CCC- pro
AGC - ser
CUA- leu
GCC- ala
UUU- phe
GCA- ala
AGA- arg
GGC- gly
CAU- his
AUC- lle
GAC- asp
Ans.
Sex-linked genes are those genes that found on sex-chromosomes (X and Y chromosomes) and their phenotypic expression for a trait depends on the gender of the offspring.
Most of the sex-linked genes are present on X chromosomes as X chromosomes have more number of genes as they are made up of more DNA as compared to Y chromosome.
However, male individuals are more likely to exhibit the sex-linked traits. It is because most of the sex-linked traits are recessive and males have only one copy of X chromosome, while females have two copies of X chromosome. One mutated copy in male can exhibit the trait, while in females, both of the mutated copies are required to exhibit that trait.
