Answer:
i need more info to answer this question
Explanation:
All of the noble gases which are helium neon argon krypton
A marble or small sphere made of stone is found to have a mass of 3.05 grams to find the volume place it on a graduated cylinder that originally contains 10.00 ml of water when the marble is placed on the cylinder the new volume is 11.20 ml. 12 thats adding in the water
Volume=V=1.2cm^3
Density=D=2.541g/cm^3
Answer:
In humans, both sperms and ova contain 23 chromosomes.
Explanation:
During fertilization, the diploid chromosome number 46 is regenerated in the zygote. After 24 hours of fusion, human zygote starts to divide by mitosis, commencing the embryonic period. The zygote is divided into 2-cells, 4-cells, 8- cells and then 16-cells
This gene could be analyzed to determine its homology level with a human gene, which then could be restored in its normal expression. This strategy can restore the normal phenotype in defective human cells.
Sequence homology, which refers to the level of evolutionary relationship among genetic or proteins sequences, is a fundamental subject matter to determine gene function.
From this approach (sequence homology search), researchers can identify valuable genes involved in diseases in which the restoration of their normal expression levels can be used to restore the normal phenotype in defective cells.
In this case, the identification of a gene in cockroaches that is responsible for nerve regeneration could be used for subsequent identification of a human homologous gene sequence, which then can be restored in order to treat human paralysis.
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