Answer:
B. misalignment of the chromosomes during anaphase I
Explanation:
Aneuploidy refers to an error in the chromosomal number of a cell. This occurs when the chromosomes fail to separate equally into individual cells, a process called MEIOTIC NONDISJUNCTION. Meiotic disjunction can occur in either the anaphase stage of meiosis I or meiosis II, however, different outcomes are produced.
When chromosomes fail to separate at meiosis I, it results in two gametes that lack that particular chromosome (n-1) and two gametes with two copies of the chromosome (n+1). This means that the four daughter cells will have an incorrect number of chromosomes, hence, the misalignment of the chromosomes during anaphase I will result in four aneuploid daughter cells.
Answer:
•The southwest population of birds
•The tiny birds with a medium beak and a plumage of yellow
• The northeast population of birds where most succesful after 1,000,000 years this could be because their beaks where around medium length and where curved, Their body sixe was also medium.
Adaptations are formed by the random mutations of the cell of an organism by which natural selection has forced them to. This enables the organism to survive and thrive.
<span>Scientist rejected Wegener's hypothesis of continental drift at first because he did not have enough evidence to support his theory. He failed to provide a suitable mechanism that could cause the continents to move. </span>
Answer:
The correct answer will be option-A
Explanation:
The phylum which is characterised by the aseptate hyphae or hypha without septate belongs to Zygomycete.
The members of Zygomycetes are categorized into 10 orders and 122 genera.The fungi mostly grow near the cow dung and lack the fruiting bodies. They reproduce both ways that are sexual and asexual by producing spores.
Thus, option-A is the correct answer.
