Answer;
-Trisomy
Explanation;
-Trisomy is a chromosomal disorder characterized by an additional chromosome, so the person has 47 instead of 46. An example of trisomy is the Patau syndrome.
-Patau syndrome or trisomy 13 is a type of chromosome disorder characterized by having 3 copies of chromosome 13 in cells of the body, instead of the usual 2 copies. Trisomy 13 cases are caused by random events during the formation of eggs or sperm in healthy parents (meiosis).
Answer:
B and C I think
Explanation:
Those ones make the most sense in my opinion.
.
Locomoción. Los seudópodos constituyen uno de los tres modos de la locomoción de los organismos unicelulares (junto con flagelos y cilios). Muchas amebas se mueven generando un gran seudópodo en la parte delantera de la célula, a la vez que el citoplasma se retrae por la parte posterior.
Answer is (E) : Amino acids (and thus proteins) also have nitrogen atoms; thus, the radioactivity would not distinguish between DNA and proteins.
Let me explain you why. Hershey and Chase conducted their experiment to show what is the genetic material that passes from one generation to another generation. Is it protein or DNA? For explaining this, they allowed the virus to grow in the presence of two different radio active elements.
In one set they grew viruses in the presence of P-32 radio-active element
In another set they grew viruses in the presence of S-35 radio active element.
The reason why they choose these two radio-active element was, phosphorus is present in DNA but not in proteins and similarly sulphur is found in proteins but not DNA.
These viruses were allowed to infect bacteria and the later was observed to be radio-actively labelled with P-32 but not S-35. This clearly showed that DNA is the genetic material which was passed from virus to bacteria.
Now if you choose Nitrogen for labeling, it won't help you in getting any conclusion since nitrogen is present in both proteins and DNA.
