Question

Question 1 (1 point) Asexual reproduction is most important in environments where males are difficult to find. True False Question 2 (1 point) After the follicle releases the ovum, the next stages for the ovarian follicle depends on whether the ovum is fertilized and implants in the uterine wall. True False Question 3 (1 point) One advantage of sexual reproduction is

Answer 1

Sol. 1

Asexual reproduction is most important in environments where males are difficult to find.

The above statement is false because many organisms reproduce asexually even when males are present, for example parthenogenesis a kind of asexual reproduction occurs in honey bees instead they have male partners with them.

Sol. 2

After the follicle releases the ovum, the next stage of ovarian follicles depends on whether the ovum is fertilized and implanted.

The above statement is true because after ovulation, the next stages of ovarian follicles depends on whether the ovum is fertilized and implanted or not. If the ovum gets fertilized and implanted, the remainings of ovarian follicles change into corpus luteum and it secrets steroidal hormone progesterone which is essential for the maintenance of pregnancy. If the ovum is not fertilized, the remainings of ovarian follicles gets degenerated and bleeding starts leading to the next cycle of menstruation.

Sol. 3

One advantage of sexual reproduction is process of mitosis generates genetic variation through recombination.

The above statement is false because in mitosis no recombination of genetic material takes place.

So, the correct statement will be "one advantage of sexual reproduction is process of meiosis which generates genetic variation through recombination" because recombination occurs only during meiosis.

Sol. 4

The hormones LH and FSH control reproduction in female mammals,but they have no role in male reproductive biology.

The above statement is false because LH and FSH control reproduction in both male and female mammals.

In males,LH acts on Leydig cells and produces a group of hormones known as androgens especially testosterone. Along with androgens, FSH control the process of spermatogenesis.

While in females, LH induces ovulation and FSH is responsible for the growth and development of ovarian follicles.