Why did researchers originally think that protein was the genetic material? because proteins have great heterogeneity & specificity of function. Also, little was known about nucleic acids and they seemed too simple. You just studied 58 terms!
What are the 2 chemical components of chromosomes?
The two chemical components of chromosomes are DNA and protein.
Why did researchers originally think that protein was the genetic material quizlet?
Most researchers thought protein was the genetic material because; proteins were macromolecules with great heterogeneity and functional specificity. Little was known about nucleic acids. The physical and chemical properties of DNA seemed too uniform to account for the multitude of inherited traits.
Why did researchers initially believe the genetic material was protein?
Why did researchers initially believe the genetic material was protein? Proteins are more biochemically complex than DNA. … During replication of a DNA molecule, the daughter strands are not produced in exactly the same manner.
What two molecules were being seriously considered as an organism’s genetic material?
Cellular organisms are divided in two groups known as prokaryotes and eukaryotes. The genetic material, deoxyribonucleic acid (DNA) and ribonucleic acid (RNA) are arranged into structures called chromosomes. In the eukaryotic cell, the chromosomes are surrounded by a nuclear membrane forming a true nucleus.
What are chromosomes give their chemical composition?
Chromosomes are thread-like structures located inside the nucleus of animal and plant cells. ▶ Each chromosome is made of protein and a single molecule of deoxyribonucleic acid (DNA). Chemical composition of chromosomes are DNA and RNA,proteins.
What are the component of chromosomes?
The main components of chromosomes are DNA and proteins.
What are the chemical components of a DNA molecule quizlet?
What are the chemical components of a DNA molecule? DNA is composed of a sequence of subunits, each containing a phosphate, a deoxyribose sugar, and one of four nitrogenous bases: adenine (A), thymine (T), guanine (G), or cytosine (C).
What are the chemical components of a DNA nucleotide?
A nucleotide consists of a sugar molecule (either ribose in RNA or deoxyribose in DNA) attached to a phosphate group and a nitrogen-containing base. The bases used in DNA are adenine (A), cytosine (C), guanine (G), and thymine (T).
Why did many scientists in the 1940s think the genetic code was in a protein molecule?
Many scientists of the day actually thought it was protein because there are 20 different amino acids for building a protein polymer, while DNA polymers are made of only four nucleotide bases.
Which 2 other molecule did scientists think might be the genetic material?
Chromosomes were known to be composed of DNA and proteins, but it was unclear which of the two types of molecules was the source of genetic information. Most scientists favored proteins as the genetic material because of their variety.
Why did researchers suspect that DNA does not code for proteins directly?
Why did researchers suspect that DNA does not code for proteins directly? Because there is no chemical complementarity between nucleo- tides and amino acids; and because in eukaryotes, DNA is in the nucleus but translation occurs in the cytoplasm. … Explain why Morse code is an appropriate analogy for the genetic code.
Why do scientists think RNA rather than DNA may have been the original genetic material?
RNA is the first genetic material in cells because: RNA is capable of both storing genetic information and catalyzing chemical reactions. Essential life processes like metabolism, translation, splicing, etc. evolved around RNA.