Sexual Reproduction Flashcards
Sexual Reproduction
What is sexual reproduction?
A process where two parents contribute genetic material to produce offspring.
True or False: Sexual reproduction involves only one parent.
False
What are gametes?
Reproductive cells (sperm and eggs) involved in sexual reproduction.
Fill in the blank: In sexual reproduction, the male gamete is called a _____ and the female gamete is called an _____.
sperm; egg
What is fertilization?
The process where a sperm cell joins with an egg cell to form a zygote.
What is the zygote?
The fertilized egg that results from the union of sperm and egg.
Multiple Choice: Which of the following is a benefit of sexual reproduction? A) Genetic diversity B) Cloning C) Asexual reproduction
A) Genetic diversity
True or False: Sexual reproduction leads to offspring that are genetically identical to the parents.
False
What is meiosis?
A type of cell division that produces gametes with half the number of chromosomes.
What is a diploid cell?
A cell that contains two complete sets of chromosomes, one from each parent.
What is a haploid cell?
A cell that contains only one set of chromosomes, such as gametes.
Fill in the blank: The fusion of sperm and egg results in a _____ which develops into an embryo.
zygote
What role do hormones play in sexual reproduction?
Hormones regulate the development and function of reproductive organs and gamete production.
Multiple Choice: Which hormone is primarily responsible for the development of male characteristics? A) Estrogen B) Testosterone C) Progesterone
B) Testosterone
What is the role of the placenta during pregnancy?
It provides nutrients and oxygen to the developing fetus and removes waste.
True or False: All organisms reproduce sexually.
False
What is external fertilization?
A process where fertilization occurs outside the female’s body, common in aquatic animals.
What is internal fertilization?
A process where fertilization occurs inside the female’s body, common in mammals.
Fill in the blank: The process of _____ is when an organism develops from a fertilized egg into a mature form.
development
What is genetic variation?
Differences in DNA among individuals, which leads to diversity in traits.
Multiple Choice: Which of the following does NOT occur during sexual reproduction? A) Genetic recombination B) Cloning C) Fertilization
B) Cloning
What is the term for organisms that have both male and female reproductive organs?
Hermaphrodites
Fill in the blank: The _____ cycle is a series of changes that prepares the female body for potential pregnancy.
menstrual
What is an example of a sexually reproducing organism?
Humans, animals, and many plants.
True or False: Sexual reproduction can lead to the evolution of species over time.
True
