Answer:a). mutated DNA strand
Explanation: Mutation is a permanent alteration or change in the nucleotide sequence of a DNA. When one or more wrong nucleotides are added to a growing strand of DNA during replication, the base pairs involved are said to be mismatched. These mismatches result in a mutated DNA strand instead of a complementary DNA strand. Normally, new DNA strands are complementary to the template strand in the sense that they are not the same in base composition and sequence rather, wherever adenine is found in the template strand, thymine occurs in the new strand and wherever guanine occurs in the template strand, cytosine occurs in the new strand.
Compared to an adult a newborn breathes:
Half as often
A voltage source is a two-terminal device which can maintain a fixed voltage. An ideal voltage source can maintain the fixed voltage independent of the load resistance or the output current. However, a real-world voltage source cannot supply unlimited current. A voltage source is the dual of a current source. If this isn’t the answer I’m sorry but you didn’t give answer choices
Answer:
C.Never swims fast
Explanation:
RacerX and Speed protein need to bind to each other for the cilia to beat faster which would make the protozoan swim faster. However, Speed needs to be phosphorylated to be able to bind to RacerX. Thus, phosphorylation of Speed is necessary for the fast movement of cilia.
Threonine residue is phosphorylated in Speed protein. It occurs on its side chain through the formation of phosphoester bond. Apart from threonine, phosphorylation can take place on serine and tyrosine side chains again through the formation of phosphoester bond. It can also occur on histidine, lysine and arginine by formation of phosphoramidate bonds.
Since, alanine can not form any of these bonds it can not be phosphorylated. Hence when threonine is substituted with alanine in Speed protein, it can not be phosphorylated. Racer X wont be able to bind to Speed and cilia wont beat faster. As a result the protozoan will never swim fast.
