Answer:
The leading strand is copied in the 5' to 3' direction and the lagging strand is copied in the 3 to 5 direction.
Explanation:
1. The original DNA molecule remains intact, although it acts as a template for the formation of a copy that contains two new antiparallel strands. - this is false.
DNA replication is said to be "semi conservative". This is because in making a new DNA molecule, one of the strands is from the original DNA molecule and one is new. This is true for each new molecule produced One DNA molecule makes 2 new molecules, each containing one of the original strands
2. The leading strand is copied in the 5' to 3' direction and the lagging strand is copied in the 3 to 5 direction. This is true. The synthesis of each strand occurs through a distinct mechanism. The leading strand is synthesised 5'-3' (towards the replication fork), and the lagging strand is synthesised from 3'-5', away from the replication fork. T
he leading strand is synthesised continuously using an RNA primer to begin the process. The lagging strand is synthesised discontinuously, with several short primer sequences permitting the synthesis of short fragments (Okazaki fragments) that are later joined by DNA ligase. <em>NB: this is easy to remember if you consider that </em><em>3 lags behind 5</em>
3. Both strands are copied to form Okazaki fragments, which are later annealed by DNA Ligase. This is false. Only the lagging strand replicates to form Okazaki fragments
4. The replication process proceeds on both strands in the same direction, which requires that RNA primers bind to the lagging strand. This is false. The strands are synthesised in different directions
Answer:
The correct answer is -
Numerator = 6
Denominator = 73
Explanation:
In F static test or table there are two sets of degrees of freedom: one for the numerator and one for the denominator. The degrees of freedom are equal to the number of observations minus one. Thus, if the sample size were 7 then the degree of freedom would be 7 minus 1
Numerator df = 7 - 1 = 6
Thus, the numerato would be - 6.
Denominator is calculated by subtracting the observation or variables from the total number of sample size.
Denominator df = 80- 7 = 73
Answer: True
Explanation:
The Borrelia infection or Lyme disease is affected by the bacteria Borrelia burgdorferi. The bacteria is transmitted through the bite of the deer ticks. The infection is associated with symptoms such as fever, fatigue, headache, skin rash called as erythema migrans.
The last stage of the Borrelia infection can be treated with the help of small doses of antimicrobial drugs. The last stage of the disease is associated with arthritis, sever fever, fatigue, headache, sleep disturbance, mental confusion and vertigo. The drugs like doxycycline, amoxicillin, cefuroxime are useful for treatment.
Answer:
1. HETEROzygous - Having 2 diff.alleles for a gene
2. Dominant - Allele whose trait is always expressed
3.Recessive - Allele whose trait is hidden unless paired.......
4. genotype - the genetic makeup of an individual
5.phenotype - the physical charact.of a trait
6.honozygous - having 2 identical alleles for a gene