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What happens to a pest that eats a plant with the Bt gene in its cells?
Wiki User
∙ 6y ago
Death or nothing describes what happens to a pest that eats a plant with the Bt gene in its cells. Bacillus thuringensis has 96 genes for toxins that punch fatal holes in insect larvae guts, with different toxin proteins matching different species-specific types of receptors. It works, for instance, with the gene in corn matching the receptor in European corn borers, but not matching those of beneficial insects or of cotton, potato and other pests.
Wiki User
∙ 6y ago
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How are cells screened to determine if the recombinant DNA was taken up?
Usually recombinant DNA is packaged in a plasmid that contains a marker gene. This marker can be an antibiotic resistance gene (NPTII for Kanamycin) or a gene that enables the plant to synthesise an amino acid. For antibiotic resistance the cells are grown on a medium that contains the antibiotic. The ones that grow have the marker gene. Sometimes the cells are transformed with a mixture of plasmids, some with the target gene and some without. The LAC-operon is used to select the cells that have the gene inserted. The gene-insertion inactivates the LAC-Z gene. Cells grown on X-gal plates will be blue, unless there's a transgene present. So white colonies have the transgene.
What can plant hormones be characterized by?
They may act by altering gene expression. They have a multiplicity of effects. They control plant growth and development and they affect division, elongation and differentiation of cells.
If a specific kind of protein is not continually used by a cell the gene for that protein is?
the gene is never expressed. ^^^^ this guy is a frickin idiot. and this would more of be in the cells/ biology section. What happens is a repressor binds to the operator and turns off the gene so the protein doesn't get made. and when its needed the repressor detaches and the gene is turned back on. ( this all happens on a strand of DNA )
What are green cells without nuclei?
Green cells without nuclei are likely plant cells that have undergone a process called enucleation. Enucleation involves removing the nucleus from a cell, which can be done as a research technique to study cellular processes without the interference of gene expression. These enucleated plant cells can still carry out basic functions such as photosynthesis but lack the ability to perform functions associated with gene expression and reproduction.
What would most probably occur if plant gene alterations cause the plants to be deficient in photorespiration?
There would be more light-induced damage to the cells.
What ability of viruses makes them useful in gene therapy?
Their ability of infecting cells! they can infect a particular cells, and integrate their genome in it!Their ability to slice the genes from host plant and to transmitt this gene sequence in another host, making it possible to act as vectors of genes for making transgenic plants.
The process of attempting to cure genetic disorders by placing copies of healthy genes into cells that lack them is known as?
The process of replacing a defective gene with a healthy gene is called gene therapy. Gene therapy is done by cutting genes from the DNA of healthy cells and inserting them into the DNA of defective cells and tissues.
What did the successful transfer of the luciferase gene from an animal to a plant indicate about the functioning of gene?
The successful transfer of the luciferase gene from an animal to a plant indicates that the basic mechanisms for gene expression are shared by plants and animals.
What is a homozygus?
When two cells have the same gene type then they are considered homozygous.
A technique that involves putting a healthy copy of a gene into cells that have a defective copy of the same gene?
gene therapy.
Are all cells by mitosis exactly alike gene for gene?
no because they just arnt
When Mendel crossed a pure breeding tall pea plant with a pure breeding short pea plant all of the resulting plants were tall In this case the tall gene was and the short gene was?
This means that the tall pea plant had a double dominant height gene (each gene has 2 parts, one from each "parent"). The short pea plant had a double recessive gene making it short. When the two plants bread, the dominant gene always is the one that shows up, so the plant was tall.
