PCR technique is important in STR profiling in order to amplify and detect the number of Stars at a specific gene loci.
<h3>What is Short Tandem Repeat (STR) profiling?</h3>
Short Tandem Repeat profiling is a technique in molecular biology used to compare allele repeats known as STRs at specific loci in DNA between two or more samples.
The PCR (polymerase chain reaction) technique used in STR profiling involves making multiple copies is a particular segment of DNA in order to make enough quantities detectable in the analysis.
Therefore, PCR technique is important in STR profiling to detect the number of Stars at a specific gene loci.
Learn more about PCR at: brainly.com/question/13252565
Answer:
The correct answer is a gene
Explanation:
The DNA segment that carries information for coding one protein or polypeptide is called a gene. According to one gene-one polypeptide hypothesis, each gene is responsible for making a single chain of the polypeptide.
Originally it was said that one gene codes for one enzyme but later it was found that some gene also codes for non-enzyme proteins and single polypeptide chains. So after this research, the theory was modified and one gene-one polypeptide theory came. Therefore the right answer is gene.
Answer:
homozygous recessive
Explanation:
Cystic fibrosis is a recessive genetic disorder. It means that the trait is caused due to the presence of a recessive allele. The recessive alleles are expressed only in homozygous recessive genotypes. Individuals that express the disorder cystic fibrosis should have two copies of a recessive allele of the gene, that is, the genotype should be homozygous recessive.
If "C" allele is the normal healthy allele and "c" allele is cystic fibrosis allele, the genotype of the affected individual would be "cc".
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Correct Answer: B
All of these organisms are made up of at least one cell. The fourth one (Euglena) is a <u>unicellular</u> organism (made up of 1 cell), and the rest are multicellular organisms (made up of many cells).
Incorrect Answers:
A.
All of these organisms are not only made up of cells, but more specifically these organisms are all made up of <u><em>eukaryotic</em></u> cells. This means that their cells have a nucleus. The other classification of cells (<em><u>prokaryotic</u></em> cells) do not have a nucleus. These are basically just bacteria, and there are no bacteria pictured in this problem, so this is a false answer choice.
C.
Some of these organisms undergo photosynthesis, but not all of them do. Photosynthesis is the process in which organisms convert sunlight, water and CO2 into glucose and oxygen. This is how plants (and some other special organisms as well) "make their own food". There are several organisms on this list that are not green plants, so this is a false statement.
D.
Although these organisms are all made up of eukaryotic cells (having a nucleus), their cells are definitely not identical. One major difference is that between a PLANT eukaryotic cell and an ANIMAL eukaryotic cell (***see pic below***). Other differences would be seen as well if we compared cells from all of these organisms under a microscope, so this is a false answer choice.
