Answer:
Aneuploidy refers to the change in chromosomal number 23, which can lead to genetic diseases.
Explanation:
Numerical abnormalities in sexual chromosomal abnormalities involve the loss or gain of a sex chromosome generating aneupliodes individuals. Generally, the loss of chromosomes has a greater impact on an individual than the gain, although this can also have serious consequences.
Within sexual aneuploidies we can distinguish the following:
· Sexual trisomies: it is a common disorder that is usually detected at puberty since there are no characteristic physical features in infants or children. Trisomies are those where an extra sex chromosome is evidenced
§ Klinefelter syndrome, XXY
§ Triple X syndrome, XXX (Called super female syndrome)
§ Double Y syndrome, XYY (called superman syndrome)
· Sexual monosomies: Cells that have lost a sex chromosome
§ Turner syndrome, XO
· Sex polysomies:
§ XXXY
§ XXXX
§ Other
Like you might have studied. Heated hair expands while colder air contracts. So, the sound isn't able to move as efficiently in cold air than it would in warmer air.
Answer:
Texture
Explanation:
the rate at which the rock had cooled when molten magma was cooling gives out a clear comparrison of the rocks which is the texture
Answer:
All animals in the phylum Chordata share some key features that appear at some stage during their development 1) notochord 2) dorsal hollow nerve cord 3) pharyngeal slits
Explanation:
Phylum chordata is probably the most notable phylum.The most distinguishing character that all animals belonging to this phylum have is the presence of notochord. Phylum Chordata is again divided into three subphyla. They are:
Urochordata
Cephalaochordata
Vertebrata
Chordates show following features, at different stages in their life. They are:
Notochord: It is a longitudinal rod that is made of cartilage and runs between the nerve cord and the digestive tract. Its main function is to support the nerve cord. In Vertebrate animals, the vertebral column replaces the notochord.
Dorsal Nerve Cord : This is a bundle of nerve fibres which connects the brain to the muscles and other organs.
Pharyngeal slits: They are the openings which connect the mouth and the throat. These openings allow the entry of water through the mouth, without entering the digestive system.
Answer:
The corect answer is c can be made by the animal"s body from other substances and is not readily absorbed by the gastrointestinal tract.
Explanation:
Accordings to our body"s demand there are 2 types of amino acids
1 Essential amino acids These amino acids are not synthesized in our body as a result we have to intake them through diet. Example phenylalanine ,methionine,threonine,valine.
2 Non Essential amino acids These amino acids are synthesized within our body as a result there is no requirement to intake them through diet and they are not readily absorbed by the gastrointestinal tract. Example Glycine, Alanine,Serine,Aspartic acid.