Answer: D
Explanation: They can be sure if they both take a blood test. There is a possibility both jane and john are carriers of sickle cell(AS), which makes it possible to have children with sickle cell disease. Also, both jane and john may not be carriers at all (AA), in that case none of their child will have sickle cell, likewise if either of them is AA, and the other is a carrier, none of their child will have sickle cell.
I think A is the right answer because secondary consumers are herbivores. I am 99.9% sure about this.
The correct answer is C. 36
Explanation:
In genetics, a nucleotide refers to the basic units that form genetical material. On the other hand, a codon refers to a sequence of three nucleotides in the mRNA or messenger RNA which are a set of molecules that take genetical information from ADN to the ribosome of the cell. This implies in the case of a 12 mRNA codons there are 36 nucleotides as each of the codons contains three nucleotides which means by multiplying the number of codons by three (number of nucleotides) it is possible to know the total number of nucleotides in an RNA sequence or in this case 12 (codons) x 3 (nucleotides) = 36 nucleotides.
Answer:
An ionic bond.
Explanation:
A strong electrostatic force of attraction will develop between the oppositely charged ions. For example, sodium chloride (salt) is essentially made of a positively charged sodium ion and a negatively charged chloride ion.
