This similarity can be explained by Charles Darwin's Theory of Evolution. Humans and chimpanzees share a common ancestor wherein a number of million years ago, due to adaptation of their environment, human species branched out and eventually evolved into Homo sapiens.
Answer:
The correct answer would be common ancestry.
Common ancestry means that different species have been established from a single parent species or population.
Organisms which share more recent common ancestors tend to have more similarity as compared to the organisms which share an older ancestor.
Humans and chimpanzees also believed to evolved from a common ancestor around 6-7 million years ago.
It is the reason why humans and chimpanzees share around 96-99 percent of the DNA.
The correct answer is:
C. homeostasis
Explanation:
Homeostasis is the case of constant internal conditions controlled by living things. This dynamic state of equilibrium is the state of optimal functioning of the organism and comprises many variables, Homeostasis is the inclination to continue to change in order to secure a stable, relatively consistent internal environment.
Homeostasis is the process by which an organism maintains a stable internal environment despite changing external conditions. Other options like differentiation, self-renewal, and specialization are biological processes but not specifically related to maintaining stable internal conditions.
The term that refers to the maintenance of a stable internal environment despite changing external conditions is homeostasis. While differentiation, self-renewal, and specialization are all important biological processes, they don't specifically relate to the way an organism's body works to keep vital conditions like temperature, pH balance, and blood sugar level stable regardless of what's happening outside. For example, when it's cold, your body might respond by shivering to generate heat and maintain a steady body temperature - that's homeostasis in action.
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B. Tumour cells and B-cells
C. B-cells and T-cells
D. Antibodies and antigens
B. Weak acids dissociate to a great degree.
C. Weak bases dissociate only to a slight degree to produce free hydrogen ions.
D. When an acid and a base are mixed together in the proper proportions, two hydroxyl ions will unite.
The correct answer is A. When free hydrogen ions and free hydroxyl ions are removed from solutions of acids and bases, the acidic and basic properties disappear.
The strength of the acid or base depends upon its degree of ionization. Since different acids and different bases dissociate or ionize to different extent in water so their degree of ionization is also different. Strong acids and strong bases ionize in water completely while the weaker acids or bases ionize partially. Ionization of the weak acids in water are in equilibrium. The degree of ionization is the ratio of the number of ionized molecules to the number of molecules which are dissolved in water. In case of acids the ionized molecules are hydrogen ions and in case of bases hydroxyl ions.
Answer:
Yes, the population can evolve differently with resistance gene to the HIV
Explanation:
AIDS is a deadly disease caused by the Human immunodeficiency virus. The HIV infection ultimately results in the death of the host and the cases are increasing every year.
If in the population of the area affected with the HIV AIDS develop some resistant gene to the disease, therefore, the resistant gene will be passed on to the generation and the population will evolve differently as a measure or response of adaptation and natural selection.
The case of sickle cell anaemia with modified shapes of red blood cell in the population of Africa, a resistance mechanism to malaria can act as evidence to the HIV case.
Thus, Yes, the population can evolve differently with resistance gene to HIV is the correct answer.
Answer:
UUAC
Explanation:
Transcription is the first process of gene expression in organisms. It involves synthesizing a complementary strand of mRNA from a DNA template. This process is carried out by an enzyme called RNA polymerase, which first unwinds the DNA molecule and then adds complementary nucleotide bases to the growing RNA molecule.
Adding of nucleotides by RNA polymerase follows the complementary base pairing rule, which is a phenomenon whereby Adenine (A) binds to Thymine (T) in an hydrogen bond and Cytosine (C) binds to Guanine (G), A-T, G-C. During transcription, Uracil (U) replaces Thymine.
RNA polymerase synthesizes a nucleotide base complementary to the one it reads on the DNA i.e if it reads Adenine on the DNA, it adds Uracil.
Hence, a DNA molecule with nucleotide AATG will be read by RNA polymerase and it becomes transcribed into a RNA molecule with nucleotide UUAC.