Sexual Reproduction Flashcards
Sexual Reproduction
The act of
A biological process where two organisms contribute genetic material to produce offspring.
True or False: Sexual reproduction results in genetically identical offspring.
False
What are gametes?
Reproductive cells that unite during sexual reproduction to form a new organism.
Fill in the blank: In humans, the male gamete is called a ___.
sperm
Fill in the blank: In humans, the female gamete is called an ___.
egg (or ovum)
What process involves the fusion of gametes?
Fertilization
Multiple Choice: Which of the following is a benefit of sexual reproduction? A) Genetic diversity B) Rapid population growth C) Cloning D) None of the above
A) Genetic diversity
What is meiosis?
A type of cell division that produces gametes with half the number of chromosomes.
True or False: Meiosis results in four genetically identical cells.
False
What is the diploid number of chromosomes in humans?
46
What is the haploid number of chromosomes in humans?
23
What is external fertilization?
A reproductive process where fertilization occurs outside the female’s body.
True or False: Internal fertilization occurs within the female’s body.
True
What is a zygote?
The fertilized egg that results from the union of sperm and egg.
Fill in the blank: Sexual reproduction typically involves two parents, which are referred to as ___.
male and female
What is asexual reproduction?
A type of reproduction that does not involve the fusion of gametes, resulting in genetically identical offspring.
Multiple Choice: Which of the following organisms primarily reproduce sexually? A) Bacteria B) Fungi C) Mammals D) Plants
C) Mammals
What is the role of hormones in sexual reproduction?
Hormones regulate the development and functioning of reproductive organs and gamete production.
What is sexual dimorphism?
The differences in appearance between male and female individuals of the same species.
True or False: Sexual selection is a mechanism of evolution.
True
What is a life cycle?
The series of stages that an organism goes through from conception to adulthood.
Fill in the blank: In many species, sexual reproduction involves a ___ phase and a ___ phase.
diploid; haploid
What are the primary sex organs in humans?
Testes in males and ovaries in females.
Multiple Choice: Which of the following is NOT a method of sexual reproduction? A) Cross-fertilization B) Budding C) Self-fertilization D) External fertilization
B) Budding
What is a reproductive strategy?
A set of behaviors and physiological traits that enhance an organism’s ability to reproduce.
True or False: Sexual reproduction can increase the adaptability of a species.
True
