38. Translation is a process that (a) requires DNA ligase (b) converts RNA to DNA (c) is semi-conservative (d) requires tRNA, mRNA and ribosomes (e) produces a polysacharride 39. What is the order of the anticodon sequence if given the following DNA sequence (AGATTTCGCCCCAAA)? (a)UCUAAAGCGGGGUUU (b) TCTAAAGCGGGGTTT (c)AGATTTCGCCCCAAA (d) TCTUUUGCGGGTTT (e) AGAUUUCGCCCCAAA 40. The mating of F+ strains with F- strains can result in (a) the transfer of antibiotic resistant genes (b) the immediate production of a Hfr strain (c) transferring genes needed for conjugation and transfer to the recipient (d) integration of genes into the donor (e) the production of a capsule 41. Exonucleases are needed to (a) cut out RNA (b) needed for excision repair (c) photoreactivation (d) breakdown DNA-RNA strands (e) none of the above TRUE OR FALSE (2 pts) Mark A for True and B for False 42. Replica plating is a method for direct selection 43. RNA is a double stranded molecule in the case of tRNA. 44. Intercalating agents cause mismatch mutation only on the 5'-3' DNA strand. 45. Plasmids can replicate independently from the bacterial chromosome. 46. DNA polymerase 3and- synthesizes from a 5'-3' direction continuously on the leading strand. 47. Transposon are examples of a mobile gene pool. 48. In the process of transcription, the DNA(+) strand is needed to make mRNA. 49. The enzyme DNA helicase is needed to make a replication fork. 50. The terminator sequence stops the process of translation.
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Sri K.
The main topic of DNA replication is the process of copying the genetic information in a cell. This process occurs during the S phase of the cell cycle and is essential for cell division. The joining of the two DNA strands is catalyzed by an enzyme called DNA polymerase. Membrane-bound organelles called mitochondria also have their own DNA replication machinery. The RNA molecules required for protein synthesis are called messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). mRNA carries the genetic information from DNA to the ribosomes, where protein synthesis occurs. tRNA brings the amino acids to the ribosomes, and rRNA forms the structural components of the ribosomes. The process of transcription involves the synthesis of mRNA from a DNA template. This process is catalyzed by an enzyme called RNA polymerase. The DNA strand that serves as the template for transcription is called the antisense strand, while the newly synthesized mRNA is called the sense strand. Introns are non-coding regions of DNA that are transcribed into mRNA but are removed during the process of RNA splicing. Exons, on the other hand, are the coding regions of DNA that are translated into protein. The genetic code is a set of rules that determines how the nucleotide sequence of a gene is translated into the amino acid sequence of a protein. Each three-nucleotide sequence, called a codon, corresponds to a specific amino acid. There are 20 different amino acids that can be encoded by the genetic code. Sex-linked conditions are genetic disorders that are more frequently observed in males. This is because males have only one X chromosome, so if they inherit a defective gene on their X chromosome, they will manifest the condition. Females, on the other hand, have two X chromosomes, so they have a higher chance of having a normal copy of the gene to compensate for the defective one.
Adi S.
DNA components Pyrimidines, purines phosphates Enzymes and deoxyribonucleic acids Ribosomes RNA pyrimidines purines phosphates groups and release sugars. Ribonucleic acid Messenger RNA Proteins DNA JLO quick: only Which of the following modifications specifically affects resulting protein? 4-base deletion near the cleavage site in Human T-cell leukemia virus Slope color Most impactful effect Base substitution; 20. DNA ligase joins: Uracil kinase methylates nucleotide Uracil fragments nonrepetitive Uracil fragments nonrepetitive DNA pieces Phosphodiester RNA fragments phosphodiester creating bonds Recombinant DNA breaks described as fragments of DNA composed of specific sequences originating from a Palindromic sequence of four nucleotides. Biotechnology loop All of the above choices different The function of the Kidney is to filter nutrients from the food and produce hormones; muscle contractions produce urine. Pituitary gland, from a control zone, regulates urinary output. Following is not a structure of a nephron? Which of the following is not a structure of a nephron? The Loop of Henle Proximal convoluted tubule Bowman's capsule renal corpuscle supplies the cortex with nutrients Ciliary part of the eye that the fovea centralis aqueous humor sclera mucus humor The body maintains balance by the fluid-filled semicircular canals Cochlea the fluid-filled ossicles The hormone aldosterone regulates kidney water reabsorption counter Microscopic reabsorption from the distal tubule and collecting duct produces the medulla of the adrenal glands responsible for maintaining the pH of blood responsible for causing the release of angiotensin
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