subject
Biology, 05.03.2021 22:10 caridad56

Help I’m being timed A chromosome is a cellular DNA molecule that typically encodes thousands of genes. In order for the information encoded within a specific gene to be transcribed to make RNA, RNA polymerase begins to transcribe the DNA, using one DNA strand as a template to make a complementary RNA molecule that is later used for protein synthesis during translation. A scientist is studying two mutant bacterial strains that do not produce a functional form of amylase, an enzyme that the organisms use to break down starch polymers. The scientist is using a third bacterial strain capable of normal amylase production (called the wild type) for comparison. Upon sequence analysis of the DNA region around and including the amylase gene in all three bacterial strains, the scientist locates the mutations as shown. Which statement BEST explains how these mutations affect gene expression and amylase enzyme functionality in the mutant bacterial strains?

A. Only mutant #1 transcribes the amylase gene and translate the resulting mRNA, but the resulting enzyme is non-functional

B. Only mutant #2 transcribes the amylase gene and translates the resulting mRNA, but resulting enzyme is non functional

C. Neither mutant #1 nor mutant #2 transcribes the amylase gene nor complete translation, so neither make functional enzymes

D. Both mutant #1 and mutant #2 transcribe the amylase gene and translate the resulting mRNA, but both resulting enzymes are non- functional.


Help I’m being timed

A chromosome is a cellular DNA molecule that typically encodes thousands of

ansver
Answers: 2

Another question on Biology

question
Biology, 20.06.2019 18:04
What major structure can be used to tell apart the embryos of acoelomates pseudocoelomates and coelomates?
Answers: 2
question
Biology, 21.06.2019 17:10
Salmonella typhimurium is a food-borne bacterial pathogen that can cause severe gastrointestinal disease. salmonella is often phagocytosed by macrophages that normally destroy bacterial pathogens, but this bacterium is somehow able to prevent the complete maturation of phagolysosomes. salmonella is able to tolerate the low ph of phagolysosomes, and in fact responds to the drop in ph by secreting toxins that interfere with other cellular responses. which of the following differences would you expect to contribute to the survival of a bacterium within an salmonella-containing phagosome, compared to a healthy phagolysosome? decreased activity of acid hydrolases increased activity of acid hydrolases decreased import of h+ ions increased import of h+ ions my guess is decreased activity of acid hydrolases but i'm not sure.
Answers: 1
question
Biology, 22.06.2019 13:00
Which type of landform forms at the plate boundary as a result of divergent stress
Answers: 1
question
Biology, 22.06.2019 13:30
Which of th following best describes how genes produce traits in an organism?
Answers: 2
You know the right answer?
Help I’m being timed A chromosome is a cellular DNA molecule that typically encodes thousands of ge...
Questions
Questions on the website: 13722363