Answer: We are given:
Mass of solvent (water) = 100 grams
Mass of solute (NaCl) = 20 grams
Mass of the Solution:
Mass of Solution = Mass of Solute + mass of Solvent
100 + 20 = 120 grams
Mass Percent of NaCl:
We know that
mass percent of NaCl = (Mass of NaCl / Mass of Solution) * 100
replacing the variables
Mass% of NaCl = (20 / 120)*100
Mass% of NaCl = 100 / 6
Mass% of NaCl = 16.67%
Explanation:
Nondisjunction
DNA replication duplicates every strand of DNA so that there
are two copies of every chromosome. These (attached) copies, called sister chromatids,
undergo two rounds of chromosomal divisions ( Meiosis I and II). A total of
four haploid cells are now present. Homologous chromosomes or sister chromatids
are pulled apart in a process called disjunction. However, chromosomes may at
times fail to separate properly. This is called nondisjunction.
Answer:
Recombinant DNA technology
Explanation:
Recombinant DNA technology (also called genetic engineering) is the combination of DNA molecules from two different species to create new genetic combinations that would not otherwise be found in the genome and that is of great importance to science and other fields. Recombinant DNA technology is mainly involved in the isolation, characterization, and alteration of DNA in organisms’ genome to create improved or novel organisms.
Answer:
c) Condoms will not prevent the spread of Gonorrhea. Gonorrhea can spread from an infected mother to a fetus.
Explanation:
To prevent the spread of infection, it is important that healthcare professionals inform people about ways to protect themselves against infection. In addition, it is important that health professionals inform the dangers that this infection can cause, such as symptoms and rapid transmission, which can even happen from mother to fetus. On how to protect themselves, health professionals can say that the use of condoms is the most efficient form of protection.
Transcription is the correct answer