Microbiology is the study of microbes..
Q1. The answer is egg.
The fertilisation is a fusion of two gamete cells which results in the formation of the zygote. Sperms and eggs are gamete cells, male and female, respectively. After a sperm and an egg fuse, i.e. the fertilisation takes place, a zygote is created and then begins a development of an embryo.
Q31. The answer is 100% chance
Alleles:
T - the dominant allele for the tongue rolling
t - the recessive allele
Genotypes and phenotypes:
TT - people able to roll tongue
Tt - people able to roll tongue
tt - people not able to roll tongue
<span>The mother’s genotype is TT and the father’s genotype is TT. The offspring will get T allele from the mother and T allele from the father:
Parents: TT x TT
Offspring: TT TT TT TT
So, all of the offspring will have genotype TT and will be able to roll their tongues.
Q32. The answer is codominant.
A codominance is a pattern of inheritance in which both alleles of a gene are expressed. So, there are no dominant and recessive alleles and both will affect the phenotype. For example, plants with alleles for both red and white flowers will have flowers that are both red and white.</span>
Answer: Option C) make confident decisions about their lives
Explanation:
The ability of person to rely primarily on his or her sense organs and/or intuition in order to make sound decisions on what to pursue (future ambition), what to wear, eat, say, do etc, at any point in time confers independence on such a person.
Thus, this person is said to be an Independent individual
Genetic variation or coral spawning
<u>N</u><u><em>atural selection acts on existing heritable variation</em></u>
Answer: Option C
<u>Explanation:</u>
Natural selection is a process that occurs in nature as a key to evolution. It also goes hand with the survival of the fittest. Nature always selects the best trait to survive or get accustomed to the surrounding by undergoing modifications.
It acts on the genotype of the existing generation and causes variation in the future generation. So the population over generations get to have acquired the variations in their body, structure so that it is adaptable to the surrounding.
