<span>The grasslands typically lie in the middle of large lanmasses, or the interior of continents, where rivers are most likely to flow far away from seawater sources. Here the ever
present value of water can be seen, as it supplies the source of life to all the plants and animals in the ecosystem in a lush and relatively cushy environment when compared to
the biomes like the desert or savannah.</span>
Answer:
The new genetic information is useful to public health scientists because it allows them to test for relationships between diseases and genetics. The most common way scientists collect genetic information on a DNA sample is to interrogate a specific point in the genome using a technique we call “genotyping.”
Explanation:
<span>The answer is one in four plants had two alleles for the recessive trait. In the F1 generation of Mendel cross, all of the offspring will be heterozygous. After two heterozygotes cross, in the F2 generation, one in 4 plants will have two alleles for the recessive trait, one in 4 plants two alleles for the dominant trait, and 2 in 4 plants will be heterozygotes.</span>
Exposing humans to potentially dangerous levels of radiation as used x-rays can be fatal. X-rays are able to denature and mutate genetic molecules such as DNA and RNA, hence it can be described as a mutagen. An ultrasound scan however uses sound to create an image - this involves no radiation and is hence far safer. It is one of the reasons why it is used to examine foetuses and babies when in the uturus. The ultrasound also allows the kidney's topography and underlying structures to be observed.
