Answer:
The answer to the question is
The expected frequency of homozygotes for the allele in a population at Hardy-Weinberg Equilibrium is 0.998
Explanation:
From the question, we have the frequency of an allele = 0.999
By Hardy-Weinberg Equilibrium
p² + 2pq + q² = 1 and p + q = 1
p = dominant allele frequency in the population
q = recessive allele frequency in the population
p² = homozygous dominant individuals percentage
q² = homozygous recessive individuals percentage
2pq = heterozygous individuals percentage
Therefore the frequency of the homozygotes for the allele = 0.999² = 0.998001 ≅ 0.998 to three decimal places
The Hardy-Weinberg equilibrium states that the genetic disparity in a population will remain unchanged from generation to generation in the absence of evolutionary disturbing influences
Answer:
replication fork
Explanation:
The deoxyribonucleic acid (DNA) is a double-stranded helix composed of two long chains of nucleotides. The replication fork is a Y-shaped structure by which both DNA strands are separated in order to be replicated during cell division. In a cell, DNA replication starts at specific sites in the genome referred to as 'origins of replication'. A replication fork is generated by helicase enzymes that unwind and separate the DNA double helix strands by interrupting hydrogen bonds that hold the two DNA strands together. These DNA strands act as templates for the leading and lagging DNA strands. During DNA replication, the leading strand is synthesized continuously in the same direction as the replication fork, while the lagging DNA strand is synthesized in a direction away from the replication fork, in small pieces of DNA called Okazaki fragments.
If a parent cell has 46 chromosomes, how many
chromosomes will be present in each daughter cell after
mitosis?
А
12.
B
23
46
D
9
2
Answer:
B
Explanation:
Its 23 in mitosis cell division
Answer:
Explanation:
The disease sickle cell anemia is caused by homozygosity for a mutation:
Albinism is a recessive trait:
The genes S/s and A/a are linked and separated by 1 map unit.
Remember that 1 mu means that 1% of the gametes produced by an individual will be recombinant.
Son: Sa/sA
The gametes he can produce are:
Since the frequency of recombination is 1% (or 0.01), each recombinant gamete has a frequency of 0.005 (since there are two possible recombinant gametes).
The parental gametes will appear with a frequency of 0.99, each of them with a frequenct of 0.495.
Daughter: SA/sa
The gametes she can produce are:
In order for them to have an albino child with anemia (sa/sa), the gamete sa from each parent had to be produced and fused into the zygote. Since the production of gametes by each parent is an independent event, the probability of having sa/sa offspring can be calculated as:
Prob. sa gamete son × Prob. sa gamete daughter = 0.005 × 0.495 = 0.0025
The probability that a child of theirs will be an albino with sickle-cell anemia is 0.25%
B. Lactase enzymes used in milk sugar digestion
C. Enzyme that aids in the digestion of oligosaccharides
D. Enzymes to promote immune system function
We have to remind them that ASL is their language and itdoes not reflect their intelligence. Language variation in the Deaf World iscalled register. Register refers to variation in language according to theformality or informality. Intimate, casual, consultative, formal, andfrozen. Some Deaf feel low when they usestrong ASL, feeling that they do not have good English.
The red blood cells are cohesive, meaning they want to stick together. if one cell moves along the capillary this cohesion will drag the neighboring cell with it. the cells are also adhesive to the capillary walls, so they stick along the tube lining as they are dragged through the capillary.