Uracil - Study guides, Class notes & Summaries

What are the purines and pyrimidines? - Answer-purines: adenine, guanine pyrimidines: cytosine, uracil, thymine What are some examples of the cause of mutations in DNA? - Answer-cellular metabolism, UV light exposure, ionizing radiation, chemical exposure, replication errors What happens when the DNA is damaged/a mutation occurs? - Answer-cell cycle checkpoint activation, transcriptional program activation, DNA repair, apoptosis What is the definition of a gene? - Answer-A segment of D...

Genomics Midterm Exam Questions With Complete Solutions. DNA is a polymer composed of all of the following EXCEPT: a. nitrogenous base b. 5-carbon sugar c. codon d. phosphate group c codon = 3 nucleotide sequence Which of the nitrogen-containing bases are purines? a. adenine b. cytosine c. thymine d. guanine a, d cytosine and thymine are pyrimidines In a DNA sequence, adenine nitrogen base pairs with _________, while guanine pairs with _________. a. uracil, thymine b. th...

The sum total of all the microbes in a certain environment is termed the______ Select one: a. biofilm b. microbial niche c. microbiome d. phylogeny e. domain: Microbiome 2. Studies of the immune response to an infection caused by microorganisms would be performed by a/an _______. Select one: a. hypersensitivity specialist b. geomicrobiologist c. epidemiologist d. immunologist: Immunologist 3. Which of the following is NOT a recent discovery that has had a huge impact on the under...

A common cloning strategy for introducing foreign genes into plants with Agrobacterium employs all the following features except: A) a selectable antibiotic marker such as kanamycin resistance. B) a shuttle vector with 25 bp T-DNA repeats flanking the foreign gene of choice. C) a Ti plasmid lacking its T-DNA segment. D) active vir gene products from the altered Ti plasmid. E) an ability to induce crown gall formation in infected leaves. - Answer-B) a shuttle vector with 25 bp TDNA repeats ...

A nucleotide consists of___________? - ️️A phosphate group, a nitrogen base, and a 5-carbon sugar. Polymerization requires energy from what? - ️️Active nucleotides or nucleotide triphosphates such as (aTP, tTP, cTP, gTP, uTP) Deoxyribose has a H at the 2' and is in - ️️DNA Ribose has a OH at the 2' and is in - ️️RNA Cytosine is a - ️️Pyrimidine Uracil only exists in RNA and is a - ️️Pyrimidine Thymine only exists in DNA and is a - ️️Pyrimidine Pyrimidin...

RNA contains the sugar a. ribose. b. deoxyribose. c. glucose. d. lactose. a Unlike DNA, RNA contains a. adenine. b. uracil. c. phosphate groups. d. thymine. b Brainpower Read More Which of the following are found in both DNA and RNA? a. ribose, phosphate groups, and adenine b. deoxyribose, phosphate groups, and guanine c. phosphate groups, guanine, and cytosine d. phosphate groups, guanine, and thymine c Which nucleotide in Figure 13-1 indicates the nuclei...

What changes a cytosine into a uracil? Which base nucleotides contain an extra amino group? Which base nucleotide has an extra methyl group? What are the purines?Pyrimidines? How does Methyltrexate work on DNA? If a sample of DNA has 10% G, how much is the T %? Which DNA has a higher melting point?Why?Define melting point. What is the charge of Histones?What 2 AA are histones abundant in? what causes chromatin to be tightly packaged?Name of this type of chromatin? (active or inactive)If ...

ASCP Technologist In Molecular Biology Board Exam Prep UPDATED Actual Exam Questions and CORRECT Answers Pyrimidine - CORRECT ANSWER- One carbon ring Cytosine, Thymine, Uracil Purine - CORRECT ANSWER- Two carbon rings Adenine, Guanine How are nucleotides joined together? - CORRECT ANSWER- Condensation to form phosphodiester bond

Which of the following is not a difference between RNA and DNA? a. RNA has ribose as it sugar, while DNA has deoxyribose. b. RNA is directly important in protein synthesis, while DNA stores genetic information for protein synthesis. c. RNA is single-stranded, while DNA is double-stranded. d. In RNA, cytosine binds with uracil, while in DNA, cytosine binds with guanine. correct answersd. In RNA, cytosine binds with uracil, while in DNA, cytosine binds with guanine. During transcription,...

Pyrimidine correct answersOne carbon ring Cytosine, Thymine, Uracil What is the function of mRNA? correct answersCarries genetic info out of nucleus Transcript translated to protein What is the function of tRNA? correct answersCarries aa to ribosome Anticodon pairs with codon on mRNA strand What is the function of rRNA? correct answerspart of ribosome structure most abundant RNA coordinated coupling of tRNA to mRNA codons Feedback inhibition correct answersProduct of pathway is ...