If the amino acid sequences in the protein of two organisms are similar, why will their DNA also be similar?
Because the DNA is the template for all amino acids (proteins) in the body. There are several steps in between but that is the answer.
EVOLUTION: Explain how such different organisms could have the same subset of genes?
PLEASE HELP! A typical prokaryotic cell has about 3000 genes in its DNA, while a human's has about 20,500 genes. About 1000 of these genes are present in both cells. Explain how such different organisms could have this same subset of genes. What sort of functions might these shared genes have?
The physical manifestation of an organism's genes is called its:?
D. Phenotype. Heres what the other options mean: Genetic code -- the set of rules by which information encoded in genetic material (DNA or mRNA sequences) is translated into proteins (amino acid sequences) by living cells. The code defines a mapping between tri-nucleotide sequences, called codons, and amino acids. Environment -- the surroundings of an object. (Though im sure you already knew that.) Number of chromosomes -- the numerical amount of chromosomes (organized structure of DNA and protein that is found in cells) found in an organism. Genotype -- the inheritable genetic makeup of an organism or group of organisms with reference to a single trait, set of traits, or an entire complex of traits. Genotype holds the critical instructions that are used and interpreted by the cellular machinary of the cells to produce the outward, "physical manifestation" of an organism, in other words its phenotype.
How are DNA of different organisms different?
In simple terms, Dna is made of 4 components A, G, T , C.A is for adenosineG for guanineT for thymineC for cytosineThese are nitrogenous bases. Now coming back to your question. It's the arrangement of these nitrogenous bases which makes up an organism. How? Dna codes for proteins. Most of the stuff in your body are proteins. These proteins take care of your day to day function of your body.Variability of dna in different organism is caused by-Length of the DnaChanges in sequences of A, G, T, CMutations (not the X-men type)Environmental factorsReplication errorThese changes in dna lead to events called speciation. And such speciation events lead to formation of newer species who may or may not be more suited to survive in that specific environment. That is the reason why there are so many species with different sets of Dna.Hope this helped.Up vote below
Only double checking a few Biology Questions?
Hello amazing people of yahoo answers :D How are you doing today? I need to double check my answers :) Please refer to this picture for the following 3 questions: http://img337.imageshack.us/my.php?image... 1) Which statement about this diagram is correct? Molecule 2 is RNA because it is the only molecule that contains four types of bases. Molecule 1 is RNA because it contains thymine. Molecule 2 is DNA because it can pair with another molecule. Molecule 1 is DNA because it is a double helix. << ? 2) Molecule 1 has the following sequences of bases: TCAAGT. Which set of bases in Molecule 2 will bond to this sequence in a complementary way? UCAATA UCAAGU AGTACA AGUUCA << ? 3) Which statement explains the overall function of the two molecules in the diagram? They provide information about how an organism is put together and maintained. < They provide an organism with usable energy in the form of ATP. They make up an organism's physical structure. They store excess carbohydrates for later use. That's it! Please correct me if I'm wrong :) Thank you :))
What are 3 functions of DNA?
Three main functions of dna are1.Replication-DNA plays an imp role in replication of DNA hence increase in no of chromosome and cells.2.Transcription-The main purpose of DNA is formation of rna from dna.3. Genetic information- it helps in exchange of genetic information from parents to offspring.
Why are organisms with the same number of chromosomes different in appearance?
The same reason that Battlefield Earth and Atlas Shrugged tell very different stories, despite similarities in pages count.Chromosomes are just packaging for genes. The genes—more specifically, the sequences of DNA base pairs—are what determine what grows where. So much so, then when our ancestors experiences a fusion of two chromosomes some few million years ago, it didn’t turn them into mutants or even stop them from breeding. Their cells simply read the same genes in the same order and kept merrily plugging along. And so we do today, with only 23 pairs of chromosomes instead of the 24 that all the other apes have.