Answer:
a) HT
Explanation:
This question shows an animal with two distinct unlinked genes i.e. on different chromosomes. One gene codes for head shape and the other for tail length. The gene for head shape possess alleles H and h, while gene for tail length possess alleles T and t.
According to Mendel's law of independent assortment, the alleles of a gene will separate into gametes independently of the alleles of another gene. This occurs in such a way that each gamete will contain only one allele from a gene.
Based on this principle, an animal with genotype HhTt will undergo meiosis and randomly produce gametes with the following allelic combinations: HT, Ht, hT, and ht. As seen in the gametes, only one allele of a gene occured in a gamete at a time.
Therefore, HT is the genotype possible in a gamete of parent: HhTt.
According to Charles Darwin's Theory of Origin of Species, an organism either develops or losses an attribute according to its adaptation to survive in a competitive environment. This is same with humans or salamanders. The loss or the retention of limbs may indicate the survival purposes of the species.
Answer:
A
Explanation:
Because b,c,d can be proven
while a is not proven
Answer:
Apart from the mentioned functions of a cell membrane, one of the prime functions of a cell membrane is to take part in the communication between the cell and its environment. The cell membrane is one of the most essential components that take part in communication and ensures that the messages are received and decoded appropriately.
A cell membrane comprises various proteins that plays an essential role in ensuring communication between the cells. These proteins obtain chemical information from other cells known as signaling molecules. When these molecules combine with the cellular membrane’s proteins they stimulate a modification or change in protein conformation, which then transmits the information into the cell and instigates a particular cellular reaction.
C is the answer because amplitude is need for wave 2 to be bigger than wave 1
