i got these wrong looking for the right answer 1. What is the definition of a \"
ID: 268937 • Letter: I
Question
i got these wrong looking for the right answer
1. What is the definition of a "gene"? a. Fundamental unit of chemical information b. Functional region of RNA Continuous segments along a protein molecule A unit of heredity transferred from offspring to parent that holds some characteristic e. a locatable region of genomic sequence, corresponding to a unit of inheritance which is associated with regulatory regions, transcribed reg functional sequence regions ions, and or other 2. How many origins of replication are found on a human chrovasoms? a. o. origins are specific to prokaryotic plasmids 1, replication starts in the middle and proceeds bl-directionally O 2, replication starts at each end, near the telomere d. 3, with random replication origins throughout the chromosome e. Many, depending on the chromosome 3. Which of the following statements about mRNA processing is NOT true in eukaryotes? a. A 7-methylguanosine moiety is added to the 5' region of the mRNA Addition of up to 200 adenine nucleotides occurs at the 3' end of the mRNA. c. Splicing removes introns from pre-mRNA using a complex called the Spliceosome. d. Translation begins as the transcript is released from the RNA polymerase.Explanation / Answer
1. What is the definition of a gene?
Answer : E
A gene is a basic hereditary unit which is responsible for the functioning of the organism. It contains information needed for the production of various proteins, hormones and enzymes in the body. Genes are inherited from parents to the offspring.
2. How many origin of replication are found on a human chromosome?
Answer : E
A human chromosome is made up of many genes which are in turn made up of lots of DNA. It takes a lot of time for the DNA on a single chromosome to replicate. Depending on the size of the chromosome, numerous origin of replication form to speed up the process of replication.
3. Which of the following statements about mRNA processing is not true in case of eukaryotes?
Answer : D
The process of translation starts immediately as the transcript is being released from RNA polymerase only in case of prokaryotes. In eukaryotes there will be a delay in the start of the translation process as the mRNA transcripts are to be moved to the site of the translation process from the transcriptional site. Hence mRNA transcripts undergo processing in order to protect themselves from being digested.
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