The frequency of two alleles in a gene pool is 0.1 (A) and .9 (a). The percentage in the population of heterozygous in individuals is 18%, and the percentage of homozygous recessives is 81%.
The frequency of two alleles in a gene pool is 0.1 (A) and .9 (a). Hence,
p = 0.1 and q = 0.9
The equation for the Hardy-Weinberg principle is:
p² + 2pq + q² = 1
p² + 2pq represents the frequency of heterozygous individuals and q² represents the frequency of homozygous recessives
Substituting the values:
p² + 2pq + q² = 11 × 0.01 + 2 × 0.1 × 0.9 + 0.81 = 1 = 0.01 + 0.18 + 0.81= 1
Therefore, the percentage of heterozygous in individuals is:
p² + 2pq = 0.18 × 100% = 18%
And the percentage of homozygous recessives is:
q² = 0.81 × 100% = 81%
Thus, the percentage in the population of heterozygous individuals is 18%, and the percentage of homozygous recessives is 81%.
Learn more about Hardy-Weinberg principle here:
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b. earthquakes
c. blizzards
d. A and B only
2. Which of the following are effects of "El Nino"?
a. hurricanes
b. floods
c. droughts
d. A and B only
e. A, B, and C
1. The right answer is d. A and B only.
On September 8, 2017, the earth shook in Mexico on the night of Thursday to Friday. An earthquake measuring 8.2 on the Richter scale hit the south of the country off the coast of Chiapas state, according to the US Geospatial Monitoring Center (USGS). The shock was felt as far as the capital, Mexico City.
2. The right answer is e. A, B, and C.
El Niño, and its La Niña counterpart, are large-scale oceanic phenomena of the equatorial Pacific Ocean, affecting the wind regime, sea temperature, and precipitation. El Niño and La Niña correspond to the two opposite phases of the coupled ocean / atmosphere phenomenon called ENSO (El Niño / Southern Oscillation).
Originally, the name El Niño was attributed by Peruvian fishermen to the small invasion of hot water that occurs every year along the coasts of Peru and Ecuador around Christmas - hence its name: in Spanish, El Niño means the child Jesus. By extension, the climatic phenomenon corresponding to the increased warming of surface waters near the coast of South America is now called El Niño. We know that it is linked to a cycle of changes in atmospheric pressure between the east and west Pacific, coupled with a cycle of ocean current along the equator.
Only ENSO has such a marked global impact. The other two ocean basins, Indian and Atlantic, are too small to allow such an important coupling between atmospheric and oceanic circulation, even if they also undergo deep water upwelling and trade winds.
Chromosomes are inherited from the parents. One chromosome from each of 23 pairs came from each of the parents. The two chromosomes of a pair (except for the sex chromosomes) contain the same genes, but the genes have small differences. The X and Y Chromosomes determine the organism’s sex. One chromosome pair - the sex chromosomes - is unique. Typically females have two X chromosomes and males have an X and a Y. Mothers always pass an X chromosome on to their children. Whether the father passes on his X chromosome (leading to a pair of X chromosomes) or his Y chromosome (making a mixed set) determines your sex. Chromosomes get shuffled when eggs and sperm are made. Though most adult cells contain two sets of chromosomes, sperm and egg cells are different. These special cells have just one chromosome from each pair. Which chromosome they get from each pair is random, making each sperm or egg cell unique. There is also a bit of mixing before the chromosomes are sorted into individual sperm or egg cells. Chromosomes from each pair in a mother or father, respectively, make contact and exchange pieces of DNA, creating hybrid chromosomes.
Answer:
Explanation:
genes and DNA code for the production of proteins, which can cause traits to be expressed .
a
air
food
C
temperature
precipitation
Od
Answer:
The answer is food
Explanation:
It's the only biotic factor in the choices