Answer:
Nucleus
Explanation:
Prokaryotes are the organism that came earlier than eukaryotes on this earth. These prokaryotes do not have a nucleus and other membrane-bound organelles like chloroplast, mitochondria, Golgi apparatus, endoplasmic reticulum, etc.
So as prokaryotes lack membrane-bound organelle their genetic material is not enclosed in the nucleus therefore their genetic material remains in the cytoplasm of the cell while eukaryotes have membrane-bound nucleus in which their genetic material are present.
So the nucleus is the major organelle that prokaryotes are missing that eukaryotes have.
R r
Y RY rY
y Ry ry
The 4 in the middle are the genotypes and the phenotypes are Round green, wrinkled green, round yellow, wrinkled yellow
Answer:
The transcription rate will slow down in the cells that carry mutant sigma factor.
Explanation:
Sigma factor play an important role during initiation of transcription.The sigma factor binds to the core RNA polymerase(that contains alpha,beta,beta dash and omega subunit) to form hollow enzyme.
The binding to sigma factor to core RNA polymerase initiates the formation closed promoter complex and the release of sigma factor result in the formation of open promoter complex that signals the ending of transcription initiation.
Now if the sigma factor binds tightly to the core RNA polymerase then it will be difficult for the sigma factor to get dissiciated from hollow enzyme,as a result transcription will remain in the initiation phase. So the process cannot enter the elongation phase.
Answer:
A chemical compound is a chemical substance composed of many identical molecules composed of atoms from more than one element held together by chemical bonds. A molecule consisting of atoms of only one element is therefore not a compound.
