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Stack #1118795
| Question | Answer |
|---|---|
| The DNA double helix has a uniform diameter because____,which have two rings pair with___ which have one ring | Purines;pyrimidines |
| In analysis of nucleotide composition of DNA,the following is ture | A+C=G+T & G+A=T+C |
| Separates the DNA strands During replication | Helicas |
| Convalenty connects segments of DNA | Ligase |
| Brings correct nucleotides to assemble new strand | Polymerase |
| The leading and the lagging strands differ in that | The leading strand is sunthesized in the same direction as the movement of the replication lagging inthe opposite direction;Leading strand is sunthesized continuously |
| Which of the following help to hold the DNA strands apart while they are being Replicated | single stranded binding proteins |
| After DNA replicatin is completed | each new DNA double helix consists of one old DNA and one new DNA strand |
| What is the role of DNA ligase in the elongation of the laggin strand during DNA replication | Join Okazaki fragments together |
| What represent a similarity between RNA & DNA | Nucleotides consisting of a phosphate, sugar and nitrogen base |
| A particluar triplet of bases in the template strand of DNA is AGT. The corresponding codon for the mRNA transcribed is | either UCA or TCA, depending on the wobble in the first base |
| A codon | Consists of discrete amino acid regions |
| RNA polymerase moves along the template strand of DNA in the ___ direction, and adds nuleotides to the __ end of the growing strand. | 3' to 5';3' |
| A particular triplet of bases in the coding sequence of DNA is AAA. The ANTICODON on the tRNA that ginds the mRNA codon is | AAA |
| What are riosomes composed of | Both rRNA and protein |
| Which of the following is not involved in the process of translation | Ligase |
| The process of transcription occurs in | the nucleus |
| the process of translation occurs in | the cytoplasm |
| Which type of mutations is likey to be the most common? | Point mutation |
| rRNA | Large&small subunits made of proteins |
| mRNA | Carres genetic messege from DNA |
| tRNA | series of codonsalong a mRMA |
| Point mutation | changes in one DNA nucleotide pair,which may lead to production of nonfunctional proteins |
| Frameshift mutation | nucleotide pair insertions or deletions |
| What is the difference between a monohybrid cross and a dihybrid cross | A genetic cross made to examine the distribution of one specific set of alleles in the resulting offspring;Hybridization using two traits with two alleles each |
| What are punnett squares used for? | They predict the potential genotypes of the offspring of two parents with known genotypes |
| 2. The polymerase chain reaction is important because it allows us to | make many copies of a targeted segment of DNA. |
| red nucleotides produced by the action of restriction enzymes are referred to as | Sticky ends |
| Gene therapy | Has proven to be beneficial to HIV patients |
| What is recombinant DNA | DNA that has been formed artificially by combining constituents from different organisms |
| What is a restriction enzyme | are enzymes that cut a DNA molecule at a particular place. |
| A palindrome | is a type of word play in which a word, phrase, or sentence reads the same backward or forward. |
| A 1:2:1 phenotypic ration in the F2 generation of a monohybrid cross is a sign of | Complete dominance |
| 9. A man who carries an X linked gene will pass it on to | All of his daughters |
| 10. One possible result of chromosomal breakage can be that a fragment reattaches to the original chromosome in a reverse orientation. This is called | Inversion |
Created by:
BallisticsGal
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