The 4 o\'clock plant can have different branches that contain leaves that are ei
ID: 77940 • Letter: T
Question
The 4 o'clock plant can have different branches that contain leaves that are either green, while, or variegated. If you take the pollen from a green branch and fertilize the ovules from a variegated branch, the new plants: a) would be all green b) would be all white c) would be all variegated d) could be white, green, or variegated Which of the following statements is TRUE about MATERNAL EFFECT: a) genes involved in the maternal effect are linked to the X chromosome b) genes causing the effect are passed through the mitochondria c) phenotype of the offspring is not based on the offspring's own genotype, but rather on the genotype of the mother d) reciprocal crosses give identical results, so it doesn't matter what the genotypes of the parents are What were the 2 key pieces of evidence that Watson and Crick used to determine the structure of the DNA: a) Chargoff's base ratios data and Griffith's transformation experiments b) Franklin's X-ray crystallography images and Avery, McCleod and McCarthy's transformation experiments c) Chargoff's base ratios data and Franklin's X-ray- crystallography images d) Results of the Hershey Chase experiments and the discovery of RNA Which of the following exists as a true difference between the RNA and DNA nucleic acids: a) DNA contains a six carbon sugar molecule RNA contains a five carbon sugar molecule b) DNA uses the uracil base, RNA uses thymine base instead c) DNA contains an "H" the second carbon of the sugar molecule, RNA contains a "OH" d) DNA contains a "H" group at the third cartoon of the sugar molecule, RNA contains an OH If a DNA molecule contain 20% "T" bases, what percent "G" bases would you expect to find in it? a) 10% b) 20% c) 30% d) 80% In the Hershey and Chase experiment to determine whether proteins or nucleic acids serve as the genetic information, radioactive 3$S and 32P were useful because a) sulfur (35S) is only present in proteins, phosphorous (32P) b only present in nucleic acids b) sulfur is only present in nucleic acids, phosphorous is only present in proteins c) sulfur is only present in bacteria, phosphorous is only present in viruses d) sulfur is only present in RNA, phosphorous is only present in DNA Which of the following sequences would be expected to have the LOWEST melting temperature a) CAATTAAT b) TGAATGGA c) GCGAGGTC d) ACAGTCAT Renaturation experiments have shown that: a) Both prokaryotic and eukaryotic genomes are comprised of three distinct renaturation curves (slopes) b) renaturation will lake longer for short DNA segments with greater copy number in the genome c) renaturation will take longer for unique sequences that have only one or a few copies in the genome d) the DNA goes from the doable stranded to single stranded stale as the renaturation progressesExplanation / Answer
Answer:
9). d). could be white, green, or variegated
Explanation:
GG = green, gg= white & Gg= Variegated
GG x Gg---Parents
All phenotypes are variegated due to metarnal effect.
10). b). Genes containing the effect are passed through the mitochondria
Explanation:
Materanal effect is inherited by the mitochondria or chloroplast genes of female gametes.
11). c). Chargoff's base ratios data and Franklin's X-ray crystallography images
Explanation:
They applied the clues provided by Chargaff's rules and Franklin's X-ray diffraction studies. Using brass and wire models of the bases, sugars, andphosphate groups, Watson and Crick deduced that the structure of the DNA molecule is a double helix.
12). c). DNA contains an "H" at the second carbon of the sugar molecule, RNA contains a "OH"
Explanation:
The absence of the hydroxyl (-OH) group on the 2’ carbon in the sugar is called deoxy-ribose sugar present in DNA whereas “OH” group present in the ribose sugar in RNA.
13). C). 30%
Explanation:
A(20%) = T (20%)
G (30%)= C (30%)
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