Genetic drift is a mechanism of evolution in which allele frequencies of a population change over generations due to chance.
Answer:2000x
Explanation:The maximum resolution, or resolving power (the ability to distinguish two points) of a compound light microscope is 0.2 µm; maximum magnification is 2000x.
Answer:
The bell of the stethoscope is used during auscultation to listen for low pitched sounds typical of a heart murmur.
Explanation:
Auscultation is a diagnostic test that listens to sounds from the heart, lungs, bowels, the circulatory system and other parts of the human body.
The stethoscope is an instrument that is designed for auscultation.
The diaphragm of the stethoscope listens for high pitched sounds typical of the bowels, a normal heart, and breathing.
The bell of the stethoscope listens for low pitched sounds typical of a heart murmur.
Answer:
Gamete with alleles G and g in equal proportion i.e. 1/2 G: 1/2 g will be produced by the heterozygous pea plant.
Explanation:
Mendel discovered the principles that governs inheritance in his several experiments. One of these principles is tha LAW OF SEGREGATION which states that the alleles of a gene will separate into gametes during meiosis (gamete formation) in equal proportion. In essence, each gamete will contain only one type of allele.
In this case, the gene responsible for seed colour possess two contrasting forms (alleles). The yellow allele (G) is dominant over the green allele (g) because the yellow allele masks the expression of the green allele in a heterozygous state (Gg). Thus, when this heterozygous yellow pea (Gg) undergoes meiosis, each allele will separate into gametes in a way that each gamete will contain one type of allele i.e. either G or g in equal proportion. If four gametes are produced, two if them will contain G allele (1/2G) while the other two will contain g allele (1/2g).
Answer:
See Explanation
Explanation:
Yes, this is true because some bacteria in our environment tends to either fend off of or kill other types of bacteria. In this case, this bacteria is helpful because it turns gaseous nitrogen into a form that can be absorbed and used by plants in our environment.