It takes about one minute for a blood cell to make a complete circuit of the human body.
The correct answer is: In trisomy there would be one extra chromosome; in a duplication, the number of chromosomes would be normal, but one chromosome would have two copies of a portion of the chromosome.
Trisomy is a type of polysomy (chromosome aberration with extra number of chromosome/s) and also type of aneuploidy (an abnormal number of chromosomes).
Instead of the normal two (one from mother one from father) chromosomes, people with trisomy have three chromosomes. This condition occurs when chromosome pairs fail to separate properly during cell division.
Duplication, on the other hand, usually refers to a region of DNA that is being duplicated. This condition occurs as products of several types of errors in DNA replication and repair machinery.
Answer:
Carnivores, like herbivores have a front row of incisor teeth that are generally used for nibbling. ... The only difference is that the upper jaw of the bear aligns closer to the bottom jaw, giving more of a chewing mechanism than the dog, despite showing similar multi-cusped polar and molar teeth
The answer is either A, the bottleneck effect or C, natural selection. The answer is most likely A because it is hinted that the predator fish was placed in the isolated stream. The predators eating the darters less than 5cm is natural selection though.
Answer:
The correct answer is - scanning electron microscope.
Explanation:
SEM or a scanning electron microscope is that produces an image by an electron beam over the sample surface to scan. The electrons of the beam interact with the sample producing various signals that allow providing information about the composition and topography of the individual sample. The magnification of the SEM is in between 20X to 30000X
Thus, the correct answer is - scanning electron microscope.