China .the ginkgo ,also known as the maidenhair tree, has been planted since ancient time in Chinese
Answer:
This question lacks options, options are: A) DNA replication is semiconservative. B) DNA replication is conservative. C) RNA synthesis is conservative. D) DNA replication is not conservative. The correct answer is A.
Explanation:
Watson and Crick proposed the semi-conservative hypothesis (later demonstrated by Meselson and Stahl in 1957), according to which new DNA molecules formed from an old one have an old and a new strand. This replication model assumed that the double helix DNA separates its two strands and each one serves as a template to synthesize a new strand following the complementary rules of nitrogenous bases. This model was called Semiconservative, since the two newly synthesized double helices have an old strand (an old half) and a new strand (a new half).
James Watson with Francis Crick invented first DNA structure.
Answer:
5.12μg of DNA
Explanation:
PCR is a method use to amplify DNA. It often require primers ( short sequence) nucleotides, heat stable polymerase enzymes, and thermocycler.
DNA strands are double by every cycle of PCR and it denoted by the formula 2^n where n is the number of cycle.
starting with 5ng,
the amount after 10 cycles = 2¹⁰ × 5 ng = 5.12μg of DNA
Answer:
A polygenic trait is one whose phenotype is influenced by more than one gene. Traits that display a continuous distribution, such as height or skin color, are polygenic.
Explanation:
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