If a mutation occurs in the DNA let's say a point mutation only one of the base pairs will be different. The codon will be different so a different amino acid will be synthesized. Amino acids have different radicals with different functional group. Those radicals that differ from amino acid to amino acid determine the shape and function of the protein. Therefore a mutated gene will cause the synthesis of a protein with an altered shape and function. A good example is sickle cell disease. Where glutamic acid is replaced with valine and the beta chain of hemoglobin has a deformed shape and has an altered function(carries less oxygen).
Answer:
Geotropism is the influence of gravity on plant growth or movement. Simply put, this means that roots grow down and stems grow up. ... In this case, the stimulus is gravity. Upward growth of plant parts, against gravity, is called negative geotropism, and downward growth of roots is called positive geotropism.
Explanation:
Answer: Following the statistically predicted pattern all children are expected to have wavy hair since there was no indication that either parent possessed an allele for curly hair.
If discovered that 3 out of the right children had curly hair,then one of the parent had an allele for curly hair but the allele is recessive
Explanation:
Answer: Methionine-Alanine-Arginine-Lysine
Explanation: codon are tripple base code of nucleotide sequence specifying for a particular amino acid. There are 64 codons in all 61 determine a particular amino acid while 3 are stop codons. To start the translation process we have the start codon-AUG(methionine) and the three stop codon(UAA,UGA,UAG) which reads the end of translation.
For this sequence, AUGGCAAGAAAA
AUG- specifies Methionine the start codon
GCA- specify Alanine
AGA-specify Arginine
AAA- specify Lysine
Answer:
Vestigial organs
Explanation:
Vestigial organs/ structures are those parts of the body that have become redundant, weakened, or useless to the body as a result of prolonged inactiveness.
According to Charles Darwin's theory of evolution, he explains that parts of the body that are not used quite often do not develop any further, and as generations of offspring come and go, such parts become useless to the organism. This is the law of use/misuse of parts.
This is what happened to the whales. Over the years, the whales must have discovered that the legs were useless to them as they spent most of their time in the water. This led to the degeneration of such body part over thousands of generations, leaving them with just a faint trace of the hind limbs which were observed