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Answer:
Prokaryotes have RHO dependent and RHO independent transcription termination; Eukaryotes have the poly A signal and downstream termination sequence transcription termination.
Explanation:
Transcription is the process by which mRNA is synthesized from DNA by the enzyme RNA polymerase. The process of transcription is keep going until some termination signal/mechanism stops it. There are various differences of transcription in prokaryotes and eukaryotes like types of RNA polymerases, nitrogenous bases utilized and the mechanism of transcription termination.
Prokaryotic termination may be dependent on RHO proteins or not.
- In RHO dependent pathway the RHO factor (protein) slide towards the RNA polymerase along the DNA and dissociate it from DNA.
- In RHO independent pathway a stem loop is formed by mRNA from a sequence which pasues the polymerase temporarily and consequently causes dissociation of RNA polymerase with help of poly-uracil sequence.
Eukaryotic termination may occur through poly A signal and downstream termination sequence;
- Poly A tail is added mRNA for its protection. It prevent the mRNA degradation.
- The polymerases pauses on the termination signal and ultimately dissociates from DNA.
According to Gloger's rule, endothermic creatures should have darker hues in hot, rainy areas. The so-called complex Gloger's rule also states that animals should be more rufous in warm, dry regions.
Explains the connection between animal color variation and large-scale climate gradients. Bernhard Rensch gave it that name in 1929 to honor Constantin W.L. Gloger, who was one of the first to write about relationships between animal pigmentation and temperature in 1833.
Gloger's rule, as it is known now, states that mammals and birds should be darker in warm, humid settings than in colder, dry ones.
Gloger's rule-related color variation is mostly caused by variations in melanin pigmentation, according to this quick reference.
The most prevalent pigment in birds and mammals, melanin's are of two primary types: pheomelanin's, which produce brown, buff, and rufous colors, and eumelanin's, which produce black and different shades of grey. Both generate intermediate hues when combined.
To know more about color variation :
brainly.com/question/14011568.
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<span>It says: </span>Prokaryotic cells<span> have a simpler structure than eukaryotic </span>cells.<span> Evidence shows that eukaryotic </span>cells<span> evolved from </span>prokaryotic cells.<span> ... </span>Prokaryotes<span> have metabolic functions that eukaryotic </span>cells<span> lack.</span>
Answer: When a heterozygous guinea pig (Rr) is crossed with a homozygous guinea pig (aa), the possible genotype of the offspring contains Rr and rr. Each genotype has a 50% chance of occurring in a specific generation. Nine offspring can have smooth coats as heterozygous (Rr) and homozygous (rr) parents indicate low chromosome recombination frequency (in this crossover). Genes close together on the chromosome indicate low recombination; thus, the crossover would rarely happen.
