Study sets, textbooks, questions
Upgrade to remove ads
Unit 2 67
Terms in this set (27)
What property of DNA evidence make it very useful in criminal investigation?
It can be used to identify criminals when biological evidence is used
What stabilizes the complementary base pairs in a DNA molecule?
The hydrogen bonding between complementary bases holds the two strands of DNA together.
Why was the double helix model of DNA, suggested by Watson and Crick, exciting to the scientific community?
it explained how genetic material could be duplicated by means of the complementary strands
Most geneş come in alternative forms called?
In humans, genes make up what percentage of DNA?
The highest percentage of non-coding DNA is found in what cell type?
eukaryotes, with the exception of yeasts
What does the central dogma of molecular biology state?
the pattern of information that occurs most frequently in our cells is: From existing DNA to make new DNA (DNA replication?) From DNA to make new RNA (transcription) From RNA to make new proteins (translation).
The expression of a gene to form a polypeptide occurs in two major steps. What are these two steps in their correct chronological order?
transcription and then translation
From DNA to protein involves which series of events?
Transcription is the transfer of genetic instructions in DNA to MRNA in the nucleus. It includes three steps: initiation, elongation, and termination.
Where does transcription and translation occur within a eukaryotic cell?
Nucleus and cytoplasm
What are genotype and phenotype?
A genotype refers to the genetic characteristics of an organism. A phenotype refers to the physical characteristics
What is an important difference between MRNA and DNA?
DNA can move throughout the cell, while mRNA stays in the nucleus.
What is transcription?
Transcription is the process of copying a segment of DNA into RNA.
What is translation?
translation is the process in which ribosomes in the cytoplasm or endoplasmic reticulum synthesize proteins-after the process of transcription
The three nonsense codons that do not code for any amino acid, UAA, UAG, and UGA, are also known as?
What is a frameshift mutation?
A frameshift mutation is a genetic mutation caused by indels of a number of nucleotides in a DNA sequence that is not divisible by three.
What is a point mutation?
change in single nucleotide of DNA, such that that nucleotide is switched for another nucleotide, or that nucleotide is deleted, or a single nucleotide is inserted into the DNA that causes that DNA to be different from the normal or wild type gene
What important factor can influence mutation rates?
The number of uninterrupted repeats, size and the complexity of theSTSs
During the polymerase chain reaction (PCR), two strands of DNA are separated by what?
Exposer to heat
Diabetes is a chronic disease in which the body cannot produce what?
What is recombinant DNA?
Recombinant DNA molecules are DNA molecules formed by laboratory methods of genetic recombination
What does the term transgenic mean?
relating to or denoting an organism that contains genetic material into which DNA from an unrelated organism has been artificially introduced.
What is gene therapy?
technique that modifies a person's genes to treat or cure disease
What is "golden rice"?
is a genetically modified, biofortified crop to create beta carotene.
What is the "green revolution"?
initiatives occurring between 1950 and the late 1960s, increased agricultural production worldwide, late 1960s.
What are the symptoms of vitamin A deficiency?
• Dry Skin. Share on Pinterest. • Dry Eyes. Eye problems are some of the most well-known issues related to vitamin A deficiency. ... • Night Blindness. • Infertility and Trouble Conceiving. Delayed Growth. • Throat and Chest Infections... • Poor Wound Healing. • Acne and Breakouts.
What is CRISPR and what is its purpose? What does CRISPR stand for? What are the ethics issues with CRISPR?
CRISPR is a technology that can be used to edit genes and, as such, will likely change the world.
Other sets by this creator
Unit 2 9
Unit 2 8
Manipulate the Signs