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Why do eukaryotic genes have introns but introns are absent from prokaryotic cells?
Look at the sheer amount of DNA that is contained into a eukaryotic gene (eukaryotes have more DNA to code for and so they can leave some of the DNA out, also look at the way the DNA is formed i.e. Eukaryotic genes are double stranded helixes and prokayrotic genes are a single strand of circular dna.
What makes it challenging to package gentic material in eukaryotic cells?
DNA is made up of thousands of genes. DNA is organized and packaged into structures called chromosomes. ... -A prokaryotic has a single circular molecule of DNA. What makes it challenging to package genetic material in eukaryotic cells?
Are homologous chromosomes present in prokaryotic cells?
No, homologous chromosomes are not present in prokaryotic cells. Prokaryotic cells have a single circular chromosome that is not organized into homologous pairs like in eukaryotic cells. Homologous chromosomes are found in eukaryotic cells and are pairs of chromosomes that contain similar genes.
Why have no operons been found in eukaryotic cells?
Operons are not common in eukaryotic cells because eukaryotic genes are typically regulated individually by diverse mechanisms such as transcription factors, enhancers, and silencers. Eukaryotic gene expression is more complex and often involves tissue-specific regulation, post-transcriptional modifications, and chromatin remodeling, which are not typical features of prokaryotic operons.
Eukaryotic DNA sequences called enhancers have a function similar to the of prokaryotic operons?
Eukaryotic DNA sequences called enhancers have a function similar to the operators of prokaryotic operons. In eukaryotic cells, repressor proteins inhibit transcription by binding to silencers.
Do eukaryotic cells have genes?
All cells have genes
Why must certain genes in eukaryotic cells be present in multiple copies?
To produse RNA
What do the chromosomes of eukaryotic cell have more of than those of a prokaryotic cell?
Genes
Which is used as evidence for the idea that multicellular organisms evolved from prokaryotes?
Mitochondria and chloroplasts have their own DNA
Why do eukaryotic genes have introns but introns are absent from prokaryotic cells?
Look at the sheer amount of DNA that is contained into a eukaryotic gene (eukaryotes have more DNA to code for and so they can leave some of the DNA out, also look at the way the DNA is formed i.e. Eukaryotic genes are double stranded helixes and prokayrotic genes are a single strand of circular dna.
The chromosomes of eukaryotic cells have more?
genes
Can prokaryotic Cells control the expression of their genes?
Yes.
What makes it challenging to package gentic material in eukaryotic cells?
DNA is made up of thousands of genes. DNA is organized and packaged into structures called chromosomes. ... -A prokaryotic has a single circular molecule of DNA. What makes it challenging to package genetic material in eukaryotic cells?
Are homologous chromosomes present in prokaryotic cells?
No, homologous chromosomes are not present in prokaryotic cells. Prokaryotic cells have a single circular chromosome that is not organized into homologous pairs like in eukaryotic cells. Homologous chromosomes are found in eukaryotic cells and are pairs of chromosomes that contain similar genes.
How are eukaryotes and prokaryotes the different?
Prokaryotic cells do not have a nucleus and eukaryotic cells do. The main difference to remember is that everything in a eukaryotic cell is much larger and more complex than what would be fouind in a prokaryotic cell. Bacteria is made of prokaryotic cells. Plants and animals are made of eukaryotic cells. In addition to not having a nucleus (the main difference), prokaryotes also have circular DNA while eukaryotes have linear DNA. As such, prokaryotes do not have okazaki fragments formed during DNA replication. Eukaryote genes have introns and exons while prokaryotes do not, and eukaryotes have more "junk" DNA in general.
Why have no operons been found in eukaryotic cells?
Operons are not common in eukaryotic cells because eukaryotic genes are typically regulated individually by diverse mechanisms such as transcription factors, enhancers, and silencers. Eukaryotic gene expression is more complex and often involves tissue-specific regulation, post-transcriptional modifications, and chromatin remodeling, which are not typical features of prokaryotic operons.
How are the Prokaryotic and Eukaryotic cells different?
Prokaryotic cells do not have a nucleus and eukaryotic cells do. The main difference to remember is that everything in a eukaryotic cell is much larger and more complex than what would be fouind in a prokaryotic cell. Bacteria is made of prokaryotic cells. Plants and animals are made of eukaryotic cells. In addition to not having a nucleus (the main difference), prokaryotes also have circular DNA while eukaryotes have linear DNA. As such, prokaryotes do not have okazaki fragments formed during DNA replication. Eukaryote genes have introns and exons while prokaryotes do not, and eukaryotes have more "junk" DNA in general.
