Bio 172 Exam 1 Questions with Complete Correct Answers | Grade A+

What are the events that take place in a sexual cycle and why is this cycle significant? Ans: -Gamete formation (1n Haploid) -Fertilization (Syngamy) of gametes. -Zygote formation. Zygote is first 2n (Diploid) cell. Then recombination occurs (Basically, Haploid cells (Gamete and spirm) form to create Diploid cell (Zygote)) What is the first supergroup? Ans: Excavata What is asexual reproduction? Ans: One parent, and offsprings are identical clones to parent. What are the 3 organisms of sexual life cycles and how do they differ regarding what undergoes/is a product of meiosis? Ans: -Animal (& some protists) Gametes are product of meiosis! -Fungi (& some protists) Zygote undergoes meiosis! -Plants (& some algae) Spores are product of meiosis! Why are cells of protists the most complex eukaryotic cells? Ans: All functions are carried out in cell by organelles. In unicellular species carries out all function or organism. What was the driving force of evolution? Which of these came first and why? nucleus, endoplasmic reticulum, mitochondrion or chloroplast (plastid). Ans: Symbiosis as the driving for