13 Jun When DNA assimilates a mRNA chain, it is known as
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Introductory Biology
1. If one side of a DNA molecule is TAC CCA GCC TTA ACT AAG, the other side of the DNA molecule would be )list the letters in order with a space between each 3 letters. (Points : 1)
Question 2.2. If a DNA molecule template is TAC CCA GCC TTA ACT AAG, the mRNA that would form from this template would begin with what codon? Show the first codon only. (Points : 1)
Question 3.3. When DNA assimilates a mRNA chain, it is known as ___. (Points : 1)
Question 4.4. What do you expect to happen immeditately after DNA codes the mRNA? (Points : 1)
The mRNA becomes a protein.
The mRNA leaves the nucleus to begin translation at a ribosome.
tRNA brings the amino acids to the nucleus to begin protein synthesis.
The mRNA leaves the nucleus and goes to the Golgi body to be transformed.
Question 5.5. If mRNA is AUG AUU CCU AAA UGA UGG, the tRNA formed would be: (Points : 1)
TAC TAA GGA TTT ACT ACC
AUC UAA GGA UUU UCA UCC
TAC TAA GGA TTT ACT ACC
UAC UAA GGA UUU ACU ACC
Question 6.6. What is carried by tRNA? (Points : 1)
codons
amino acids
ribosomes
base pairs
Question 7.7. The 3 base pairs of mRNA which indicate a specific amino acid are called the __. (Points : 1)
Question 8.8. The polypeptide formed from this sequence of mRNA AUG GUU ACU CAA UGA UGU, would be (Points : 1)
methionine, valine, threonine, glutamine
methionine, alanine, seronine, glutamine, threonine, threonine
methionine, alanine, thereonine, glutamine, stop, cysteine
tyrosine, glutamine, stop
more than one is correct
Question 9.9. How does the mRNA molecule contrast the DNA molecule? (Points : 2)
1. Which of the following wouldl not be true of a cell that undergoes meiosis (Points : 1)
the daughter cells have different genes
the daughter cells have genes identical to those of the mother cell that produced them
the daughter cells have different genes, each getting 1/2 the mother cell’s genes
there is an exact duplication and division of daughter cell DNA
Question 2.2. In mitosis, if a parent cell has 46 chromosomes, each daughter cell will have how many chromosomes? (Points : 1)
92
46
23
12
Question 3.3. Sister chromatids are? (Points : 1)
pairs of chromosomes, one from each parent
Have one set of genes from the daughter cell, one from the mother cell
the same as homologous chromosomes
“copies” of a chromosome going thru division
Question 4.4. Cells with reduced number of chromosomes, 1/2 the parent cell are known as __ (Points : 1)
polyploids
diploid
haploid
triploid
tetraploid
Question 5.5. The chromosomes and genes are actually replicated during this phase of cell division. (Points : 1)
anaphase
metaphase
interphase
prophase
telophase
Question 6.6. The chromosomes are aligned at the spindle equator during (Points : 1)
anapahse
metaphase
prophase
telophase
interphase
Question 7.7. The chromosomes detach from one another and become visibly separated during (Points : 1)
anapahse
metaphase
prophase
telophase
interphase
Question 8.8. The nuclear membranes reform during (Points : 1)
anapahse
metaphase
prophase
telophase
interphase
Question 9.9. If a parent cell has 28 chromosomes and undergoes meiosis, the resulting cells will have how many chromosomes? (Points : 1)
56
28
14
7
4
Question 10.10. Which of the following would you expect to have cells undergo meiosis? (Points : 1)
skin
plant leaves
Ovaries of plant flowers
mucles cells
bacteria
1. In the bonding of nitrogenous bases in DNA (Points : 1)
adenine is paried with thymine
adenine is paired with guanine
cytosine is paired with thymine
guracil is paired with adenine
two of the above are correct
Question 2.2. High energy phosphate bonds connect (Points : 1)
purines and pyrimidines
nitrogen containing bases of nucleotides
nucleotides of the sides of DNA molecule
adenine and thymine
Question 3.3. The RNA moleucle is usually made up of how many strands? (Points : 1)
1
2
3
6
Question 4.4. What is the form of RNA that carries amino acids to the site where the protein is assembled? (Points : 1)
messenger RNA
nuclear RNA
ribosomal RNA
transfer RNA
Question 5.5. Which of the following describes the process of DNA coding mRNA? (Points : 1)
duplication
translation
transcripton
central dogma
more than one of these
Question 6.6. Which of the following is true of RNA compared with DNA (Points : 1)
RNA is double stranded, DNA single stranded
RNA has the base uracil in place of the thymine in DNA
RNA has the base uracil in place of the DNA base adenine
RNA contains the sugar deoxyribose while DNAn contains the sugar ribose
guanine
Question 7.7. If the DNA triplets were TAC,CAG the mRNA codons would be (Points : 1)
UAC, CAG
CAG,TAC
ATG,GTC
AUG,GUC
UAC, CCA
Question 8.8. A peptide bond is between (Points : 1)
the amino group of one amino acid with the oxygen of the next amino acid
Nitrogen of one amino acid with the amino group of the next amino acid
the acid portion of one amino acid the the amino group of the next amino acid
a bond between to amino groups
a bond between to carboxyl acids
Question 9.9. A protein of 10 amino acids would have to have at minimum how many nucleotides? (Points : 1)
3
10
60
30
unliminted numbers
Question 10.10. A change in the nucleotide sequence of DNA, like A for a T for example, (Points : 1)
is a gene mutation
can only occur in high radiation conditions
has been known to occur in bacteria and plants but not animals
Will always result in a change of amino acid sequence.
more than one of these are true
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