(i) Describe the structure of a DNA molecule.(ii) State the function of a gene.(b) Molecular biologists identified a gene found in all species of bacteri a and in mitochondria.State the function of mitochondria.(c) Some scientists think that mitochondri a evolved from bacteri a because...
A double-stranded DNA molecule that has 22% guanine will have 1) 28% thymine 2) 22% cytosine 3) 44% adenine 4) 26% uracil 5) Both (1) and (2) are correct A double-stranded DNA molecule that has 22% guanine will have: A. 28% thymine. B. 22% ...
1. Helicase causes the DNA molecule to unwind and unzip2. hydrogen bonds between complementary bases break, causing the 2 parental DNAstrands to separate;3. single-strand DNA binding proteins bind to the 2 separated parental DNA strands;;4. to stabilise the single-stranded DNA formed;;5. Prim...
Describe the 3D structure of DNA? What are the base pairs? DNA: DNA is a very long, thin molecule that functions as the genetic information in all cellular life. A single DNA molecule is composed of millions of building blocks called nucleotides. Each nucleotide has three parts: 1) a...
• Mutation/variation are rare because DNA is a very stable molecule for several reasons: 1. DNA is made of complementary strands and repairs can be made when one side is damaged 2. The nucleotides are protected inside the sugar-phosphate backbone and secured by hydrogen bonds. 3....
结果1 题目35 Which statements describe an allele? A an alternative copied during part of a DNA form of a gene cell division molecule A key B ✓ ✓ x C ✓ × ✓ x=no D x ✓ ✓ 相关知识点: 试题来源: 解析 A 反馈 收藏 ...
A Schoeld, New House, p40(a)Name the following parts of the DNA molecule:(i)the sugar(ii)the names of TWO of the bases(iii)the bond that joins the base pairs together(b)The DNA enzyme polymerase has a key role in DNA replication.Explain the role of DNA polymerase in DNA replication...
8 (a) Explain what is meant by each of the following terms and describe one example of each:disconyousvaration coninuousvaraio[7](b) Name the molecule that controls production of proteins in each body cell of a human and describe its importance in inheritance.[Total: 10] ...
A numerical representation can be constructed to characterize the structure of a molecule, this numerical representation is called a descriptor. So it is possible to investigate the biochemical structure–activity relationships by a quantitative approach. This paper describes our current development of ...
Michio YASUNAMI, Akinari KIMURA, Hirotoshi SINAGAWA and Takehika SASAZUKI (Dept. Genet,, Med. Inst. Bioregul., Kyushu Univ., Fukuoka) HLA-DQ molecule is regarded to be a human homologue of routine I-A. We cloned and sequenced two different DQ{3 cDNAs from an HLA-Dwl2 homozygote. One...