Description : A part of an mrna has the base sequence gca. which change to this sequence would indicate a missense mutation?
Last Answer : A missense mutation is the change in a single nucleotide that results in a different amino acid being coded for. GCA codes for the amino acid Alanine. Therefore any of the following changes would be missense ... acid GUA -> Valine GGA -> Glycine CCA -> Proline UCA -> Serine ACA -> Threonine
Description : The genetic code operates via (A) The protein moiety of DNA (B) The base sequences of DNA (C) The nucleotide sequence of mRNA (D) The base sequence of tRNA
Last Answer : Answer : C
Description : If the codon UAC on mRNA changes into UAG as a result of a base substitution in DNA, it will result in (A) Silent mutation (B) Acceptable mis-sense mutation (C) Nonsense mutation (D) Frameshift mutation
Description : All the following statements about recognition of a codon on mRNA by an anticodon on tRNA are correct except (A) The recognition of the third base of the codon is not very precise (B) ... degeneracy of the genetic code (D) Wobble results in incorporation of incorrect amino acids in the protein
Last Answer : Answer : D
Description : A nitrogenous base that does not occur in mRNA is (A) Cytosine (B) Thymine (C) Uracil (D) All of these
Last Answer : Answer : A
Description : The nucleic acid base found in mRNA but not in DNA is (A) Adenine (B) Cytosine (C) Guanine (D) Uracil
Description : Which one of the following could NOT cause a change in the mRNA ―reading frame‖? a. Insertion Sequence b. Base-Pair Substitution c. Base Addition d. Base Deletion
Last Answer : b. Base-Pair Substitution
Description : What is the distance between two base pairs in DNA? -Biology
Last Answer : answer:
Description : 1.7 m double helical DNA will have base pairs
Last Answer : 1.7 m double helical DNA will have base pairs A. `3.4xx10^(9)` B. `5xx10^(9)` C. `1.7xx10^(9)` D. `1.7xx10^(5)`
Description : $ "A" DNA contains eleven base pairs. ! "Z" DNA contains only nine base pairs.
Last Answer : $ "A" DNA contains eleven base pairs. ! "Z" DNA contains only nine base pairs. A. If both As and R are ... , R is wrong D. If both As and R are wrong.
Description : If the same base pairs are used to code for all organisms why is there so much variation among organisms?
Last Answer : Need answer
Description : What is a molecole that consists of two complimentary strands connected by base pairs?
Last Answer : Feel Free to Answer
Description : Ten base pairs are present in one turn of the helix in (A) A-DNA (B) B-DNA (C) C-DNA (D) Z-DNA
Last Answer : Answer : B
Description : The minimum effective size of an operator for lac repressor binding is (A) 5 base pairs (B) 10 base pairs (C) 15 base pairs (D) 17 base pairs
Description : In tRNA molecule, the anticodon arm possesses (A) 5 Base pairs (B) 7 Base pairs (C) 8 Base pairs (D) 10 Base pairs
Description : The acceptor arm in the tRNA molecule has (A) 5 Base pairs (B) 7 Base pairs (C) 10 Base pairs (D) 20 Base pairs
Description : Transfer RNAs are classified on the basis of the number of base pairs in (A) Acceptor arm (B) Anticodon arm (C) D arm (D) Extra arm
Description : Given below is a sample of a portion of DNA strand giving the base sequence on the opposite strands. What is so special shown in it? 5′ _____ GAATTC _____ 3′ 3′ _____ CTTAAG _____ 5′ (a) ... completed (b) Deletion mutation (c) Start codon at the 5′ end (d) Palindromic sequence of base pairs
Last Answer : (d) Palindromic sequence of base pairs
Description : If the distance between two consecutive base pairs is 0.34 nm and the total number of base pairs of a DNA double helix in a typical mammalian cell is 6.6 × 109 bp, then the length of the DNA is approximately (a) 2.0 meters (b) 2.5 meters (c) 2.2 meters (d) 2.7 meters.
Last Answer : (b) 2.5 meters
Description : The following are true about DNA synthesis: a. it requires DNA polymerase b. reverse transcriptase enzymes are involved c. moves in a 5'---> 3' direction d. the rate of error in DNA synthesis is 1 in 105 base pairs
Last Answer : it requires DNA polymerase
Last Answer : (c) 2.2 meters
Description : What are the structures called that give an appearance as ‘beads-on-string’ in the chromosomes when viewed under electron microscope? (a) Genes (b) Nucleotides (c) Nucleosomes (d) Base pairs
Last Answer : Nucleosomes
Description : is the predominant form of Fast Ethernet, and runs over two pairs of category 5 or above cable. a. 100 BASE-T b. 100 BASE-TX c. 100 BASE-T4 d. 100 BASE-T2
Last Answer : b. 100 BASE-TX
Description : .......... is the predominant form of Fast Ethernet, and runs over two pairs of category 5 or above cable. A) 100 BASE-T B) 100 BASE-TX C) 100 BASE-T4
Last Answer : B) 100 BASE-TX
Description : s the predominant form of Fast Ethernet, and runs over two pairs of category 5 or above cable. A) 100 BASE-T B) 100 BASE-TX C) 100 BASE-T4 D) 100 BASE-T2
Description : If a DNA contains 1000 base pairs, what would be its length? a) 3400 Å b) 34000 Å c) 6800 d) 1000 Å
Last Answer : a) 3400 Å
Description : Difference between mRNA and tRNA. -Biology