there are two distinctions of genders in humans, one is biological and the other is socially constructed.
biologically, man and women are distinguish by the gonads, such are men posses Penis and and women have Vaginas. secondly, through penis men produces sperm which is necessary for fertilization, while women have ovum which is serves as the carrier of sperm and produces a new young ones after , sperm meets egg.
socially men and women are constructed as men are to face the social world while women have to care for the family and house.
GREEN ALGAE WOULD BE THE ANSWER
The goal of transcription is to produce RNA copies of individual genes that the cell can use in the biochemistry.
Answer:
The options are missing, the options are;
I. an error in anaphase I
II. an error in anaphase II
III. an error of the first postfertilization mitosis
IV. an error in pairing
A) I or II only
B) II or IV only
C) III or IV only
D) I, II, or III only
E) I, II, III, or IV
The correct answer is A
Explanation:
Meiosis is the type of cell division undergone by reproductive cells to produce gametes that have a reduced number of chromosomes. Normally, a diploid (2n) organism like humans undergo meiosis to produce haploid gametes (n). This reduction occurs because homologous chromosomes (similar but non-identical chromosomes received from both parent) and sister chromatids are separated during the anaphase of meiosis I and II respectively. Hence each cell (gamete) at the end of meiosis now possess 23 chromosomes each as opposed to the 46 in the producing organisms.
However, an anomaly called ANEUPLOIDY can occur in which one or more chromosomes fail to separate during anaphase. This failure to separate is referred to as NON-DISJUNCTION and it results in gametes that have extra chromosomes i.e. n+1 or missing chromosomes i.e. n-1.
Note that, this error can occur in either meiosis I or II depending on whether it is homologous chromosomes or sister chromatids that fail to separate.
According to the question, a gamete with missing chromosome (n-1) is described, hence, it will undergoes fertilization to produce a zygote with 2n-1 chromosomes i.e. A diploid organism missing one chromosome (46-1) = 45 chromosomes. This particular condition is referred to as MONOSOMY.
