answersLogoWhite

0

🧪

Genetic Engineering

Questions about the manipulation of an organisms genes in order to alter the morphological or chemical traits of the organism.

1,707 Questions

Is a cell that has one copy of its genetic information in each cell?

A haploid cell has only one set of chromosomes, so it carries one copy of genetic information in each cell. This differs from diploid cells, which have two sets of chromosomes. Haploid cells are typically found in germ cells for reproduction.

How is water necessary for the structure of green plants?

Water is essential for green plants for several reasons: it maintains turgor pressure in plant cells to keep them rigid and upright, it is involved in photosynthesis as a reactant, and it aids in nutrient transport throughout the plant. Without water, plants wilt, cannot photosynthesize effectively, and struggle to uptake nutrients.

How does incomplete dominance function at the molecular level?

One funcional allele is insufficient to produce the dominant pheontype. Both alleles are expressed as an intermediate of the alleles.

Does prokaryotic cells use DNA to code genetic information?

Yes. With the exception of some viruses which use RNA, all organisms on Earth code their genetic information on DNA. In some cases prokaryotes use a modified genetic code where a few codons will have different meanings than they do in eukaryotes, but broadly speaking, the DNA genetic code is a universal feature of all known organisms.

Describe the difference between a single digest and a double digest?

Restriction enzymes (endonucleases) are used for a variety of reasons in molecular genetics, including

obtaining a "map" and cloning DNA.

Single digests consitute DNA being treated with one restriction endonuclease, whereas double

digests contain 2 enzymes.

At times, it is difficult (or not possible) to perform double digests ... especially when the 2 enzymes have very different requirements for their activities (e.g. salt concentration, temperature optimums, ...).

If a DNA restriction map is known for a particular enzyme, and if the DNA is treated with this enzyme, then one can ascertain whether the digest was complete or not. However, if a restrictioin map is just being compiled, and if the DNA is treated with 2 enzymes in a double digest, at times difficulties may arise in determining the map if either (or both) enzymes did not completely digest the DNA.

What are 4 ways in which genetic variation is created in living systems?

1. Random mating 2. a large population 3. Individuals are able to migrate to different regions 4. An absense of mutation

Which Gender is much more prominent in the Human Genetic Disorder Phenylketonuria Male or Female?

From looking at my family tree i've found males tend to have the disorder while females tend to be carriers (only recieving one of the two necessary genes). It may or may not be a scientific fact, but it's what it looks to be to me.

Are children of Down Syndrome parents normal?

That would mean that the mother is the one with Down syndrome, since men with Down syndrome are sterile. There is a 50% chance that the child will have Down syndrome and 50% chance that child will be born without.

What is the functions of genes?

Genes control protein synthesis, control cell functions, and determine heredity.

Scientist test for alleles that cause human genetic disorders by?

There are many tests for alleles that cause human genetic disorders. These tests are usually taken by blood or other bodily samples.

How would genealogical data provide information for genetic researchers?

Genealogical information is information about families, who is related to whom and how. A genetics researcher needs to identify genetic traits. Having a large family already researched as to their relationships provides a genetics researcher with the basics of understanding the inheritance of traits within that family.