Answer: A. False, it should read “If a point mutation occurs in a tumor suppressor gene it can become inactivated. This allows the rate of cell division to increase unregulated.”
Explanation: I already know this for a fact.
Answer:
The correct answer is option D. the adaptive immune system.
Explanation:
The adaptive immune system is the immune system that takes place after the first exposure to a specific antigen either from vaccination or a pathogen. Adaptive responses are of two types: the cell-mediated and humoral immune response, the cell-mediated immune response occurs with the help of T cells, and where is humoral immune response is B cells and antibodies.
Vaccination targets the adaptive immune system as they produce antibodies against the pathogen provided by vaccination.
Thus, the correct answer is option D. the adaptive immune system.
Answer:
1/4.
Explanation:
The autosomal dominant trait means that the trait is visible in homozygous dominant and in heterozygous condition. The X linked recessive trait will be pass down from mothers to their sons and daughters will show the trait in homozygous recessive condition only.
The man is achandroplastic dwarf ( Aa) with normal vision (XY ) is married with woman that has normal height (aa) with color blind (XhXh). They have a daughter who is dwarf ( Aa). The probability of being dwarf can be calculated by the cross Aa × aa. The offspring are Aa, Aa, aa, aa. Means 1/2 are the probability of being hetterozygous for achondroplastic . The vision probability is calculated by cross XY and XhXHh. The probability that female is heterozygous is 1/2.
So, the heterozygous probability for both trait is 1/2× 1/2 = 1/4.
It’s number 1 because solids don’t have large spaces and they don’t take the space of container like liquid and gas would and they have low kinetic energy
Answer:
mechanical weathering:
ice wedging: does not change rocks composition: abrasion
chemical weathering:
oxidation: changes rocks composition: acid rain
