DNA microarrays allow the rapid and simultaneously SCREENING of many thousands of genes.
B) DNA in the nucleus
All genetic code is found in the nucleus
Answer:
Ammonia feels slippery or soapy to the touch because<u> it is an [alkaline] base and can dissolve some of the fats and oils in your skin.</u>
Explanation:
The concept <em>alkali</em> refers to salts that contain alkali and alkaline earth metal elements. According to chemists, all alkaline solutions are <u>basic</u>.
Ammonia is an alkaline solution that, when combined with water, it actually makes soap. This base feels slippery to the touch because when it makes contact with all the oils that are naturally present in your skin, it produces soap, making it slippery and soapy.
If I assume that random segregation of chromosomes takes place during spermatogenesis and all sperms are viable then I will take the male through meiosis.
The three chromosomes are +, +, ey
Then you double them into sister chromatids which is ++, ++, eyes.
If I consider all possible alignments during metaphase as, the three homologous pairs and gather at the metaphase plate.
Remember that any two of the three pairs will join together and odd pair out will line up at the metaphase plate with no partner pair.
There are three different arrangements which are possible for the three homologous pairs.
Two of the three possible arrangements will segregate and make two sperm with +ey and two sperm with +. The other arrangement will segregate and make two sperm with ++ and two sperm with ey.
When meiosis is being done, then the sperm genotypes and their proportions are,
1/3+ey, 1/3+, 1/6++, 1/6ey
