Answer:
form fraternal or dizygotic twins, two eggs are fertilised by two sperm and produce two genetically unique children.
Explanation:
Answer:
B) Phenotypic Ratio
Explanation:
Phenotype is the Visible expression of a Character
Also, with the help of a punet's square we will come to know to the Phenotypic Ratio is 3:1 where the purple flowers are dominant to white flowers where as if we take a Genotypic ration it doesn't show the Visible expression of a character, it only shows the genitical constituion of a character! If we take "percents", then it could be the Genotype "Percents" or Phenotype "Percents"
This can be done through the Transcription and Translation process.
Long story short: DNA -> messenger RNA (mRNA) -> amino acids -> polypeptide chain -> protein
Step 1: Transcription
1) DNA loop is open
2) RNA polymerase (enzyme in nucleus) catalyze reaction of “unzipping” DNA
3) free RNA nucleotides in nucleus will be added to that strand of DNA
4) messenger RNA moves across nuclear membrane to cytoplasm (our nucleus)
Step 2: Translation
1) messenger RNA attaches to ribosome
2) mRNA determines which amino acid to place on protein
3) uses codons (triplet) on mRNA. Codon on mRNA and anticodon on tRNA have to match, which places true amino acid in ribosome, then it detached and finds another amino acid in cytoplasm.
4) “AUG” starts translation, and keeps going until reaching “stop codon”.
5) completed polypeptide chain results to protein being synthesized
Your teacher should explain this process more in depth hopefully
Answer:
D. A positive charge, because of a covalent bond with oxygen
Explanation:
A water molecule contain both hydrogen and oxygen atom. Water is a polar molecule because it has positive electric charge in one of it's poles and negative charge on the other. The hydrogen is positively charged and the oxygen is negatively charged which are bonded by covalent bond. Hydrogen is positively charged because it cannot attract electrons strongly like oxygen which is positively charged. There is unequal sharing of electrons in water molecules and this is why oxygen is slightly negative and hydrogen is slightly positive.
