
Use the words and phrases below to complete each sentence. (Not all words or phrases are...
Hease complete each sentence using the words or phrases below. (Not all words and phrases are used.) single-strand break 3' double-stranded tails D-loop 3' single-stranded tails resolvase double-strand break anticrossover helicase branch migration nonsister chromatid sister chromatid meiosis Holliday junctions mitosis mitosis heteroduplex heteroduplex During meiotic prophase, a is made in one of the chromatids of one homolog. In resection, the 5' ends at the break are degraded, leaving two . The invading strand base One of the tails invades...
RNA differs from DNA in that it: all of the above contains ribose sugar contains uracil is usually found as a single-stranded molecule in cells Question 21 pts The correct order of steps in a PCR cycle is: Extension, denaturation, annealing Annealing, extension, denaturation Annealing, denaturation, extension Denaturation, annealing, extension The goal of the polymerase chain reaction (PCR) is to: Amplify a small amount of DNA sequence Cleave DNA molecules Digest bacterial plasmids Sequence DNA Which of the following is...
Complete the sentences about bacterial genomes using the words
and phrases (not all words and phrases are used).
metagenomics metagenomics 50% 50% plasmids microgenomics eukaryotic genomes insertion sequences (ISS) a single-stranded DNA molecule bacteriophage (viral) genomes 100 kilobases open reading frames (ORFS) 90% kilobase a single double-stranded DNA molecule The bacterial chromosome is In the E. coll genome, some predicted genes encode proteins with functions that have not yet been determined; these presumed genes are called The E. coli genome...
8. Glycolysis is a(n). A) five-step B) aerobic process C) catabolic D) anaerobic 9. The overall process of glycolysis A) produces CO B) is an anabolic pathway C) uses up 4 ATP molecules. D) produces 2 ATP molecules. 10. In step 9 of glycolysis, 2-phosphoglycerate is converted to phosphoenolpyruvate by a(n) reaction ) hydrolysis D) oxidation A) elimination B) addition 11. The nucleotides in the backbone of DNA are held together by A) phosphodiester B) hydrogen bonds D) peptide C)...
need help with question??
Complete each sentence using the words or phrases. (Not all words and phrases are used.) homologous chromosomes nonsister genetic recombination sister meiosis disappeared physical lexchange of parts mitosis I were rearranged chiasmata Il physical markers traits nonhomologous chromosomes || genetic markers In 1909, cytologist Frans Janssens described microscopic chromosomal structures that were viewed during prophase 1 ho called these structures The structures Janssons saw seemed to represent regions in which crossed over each other. chromatids of...
What are the three functional groups that comprise a nucleotide? What do nucleotides have in common with amino acids or simple sugars? When the structure of DNA was first elucidated, many biologists quickly saw how this structure explained the passage of information from one generation to another. How does the structure of DNA explain generation-to-generation flow of information? In other words, give a brief description of the structure of DNA and tell how this structure allows for replication. Which of...
Which of the following statements are FALSE? A Discrete units of hereditary information are called genes B A locus is the precise place on a segment of DNA that codes usually for proteins C A clone is a group of genetically identical offspring D In asexual reproduction two indivual cells pass on their genetic information Purines include A Histones B Adenine C Cytosine D Guanine E Only (B) and (D) Which of the following is CORRECT? A Helicases unwind DNA...
1. Transcription occurs in the a. Nucleus. b. Ribosomes of the Rough Endoplasmic Reticulum. c. Mitochondrion. d. Cell membrane. e. Smooth Endoplasmic Reticulum. 2. The monomers of DNA and RNA are a. amino acids. b. monosaccharides. c. nucleotides. d. fatty acids. e. nucleic acids. 3. Which of the following statements regarding DNA is false? a. DNA uses the nitrogenous base uracil. b. DNA is a nucleic acid. c. One DNA molecule can include four different nucleotides in its structure. d....
please andwer all the questions
7) Describe at least two major intramolecular forces that help stabilize the DNA double-helix? 8) In mammalian female cells, the DNA of the Barr Body is characteristic of: a) Heterochromatin b) Euchromatin c) Dispersed chromatin d) Patemal DNA ONLY e) Maternal DNA ONLY 9) When used to describe the RNA polymerases' activity, the term “processivity” refers to: a) The ability to recognize and bind to a promoter region b) The ability to remain attached to...
answer all the questions
1) All of the following contribute to promoter binding by RNA polymerase I in bacteria except: a)-10 consensus sequence b)-35 consensus sequence c) rho factor d) sigma factor e) none of the above 2) Common structural changes or lesions found in DNA after exposure to ultraviolet light are: a) thymine dimers b) cytosine dimers c) purine dimers d) adenine dimers e) none of the above 3) What is the function of the sigma subunit in the...