| DNA | ||
| #1 | genotypes made of the same alleles | homozygous |
| #2 | gene that is expressed only in the homozygous state | recessive |
| #3 | DNA is called a _________________ because it was first found in the nucleus. | nucleic acid |
| #4 | ____________________ established the structure of DNA. | Watson and Crick |
| #5 | What are the sides of the DNA ladder composed of? | sugar (deoxyribose) and phosphate |
| Mitosis and Meiosis | ||
| #1 | What happens during Prophase I in meiosis? | Chromosomes coil and become visible, spindle forms and crossing over occurs |
| #2 | Apoptosis is when: | A cell destroys itself |
| #3 | What happens during Metaphase II in meiosis? | Chromosomes line up in the middle of the cell in single file |
| #4 | Mitosis occurs when… | a body cell makes as exact duplicate of itself |
| #5 | New body cells are produced by the process of…. | mitosis |
| Reproduction in Plants and Animals | ||
| #1 | Give an example of sexual reproduction in plants | self pollination or cross pollination |
| #2 | Give an example of asexual reproduction in plants | budding, grafting, binary fission, spore production, fragmentation, vegetative reproduction |
| #3 | What are the 4 types of sexual reproduction in animals? | internal cross-fertilization, external cross-fertilization, hermaphroditic cross-fertilization, hermaphroditic self-fertilization |
| #4 | What are the 2 types of asexual reproduction in animals? | budding and parthenogenesis |
| #5 | What are the two main types of reproduction in animals? | Asexual and sexual reproduction |
| Human Reproduction | ||
| #1 | What do the testes do? | Responsible for sperm production |
| #2 | What do the Vas deferens do? | Muscular tube that carries sperm from the epididymis to the ejaculatory duct |
| #3 | What do the Ovaries do? | Responsible for the hormone and ovum production |
| #4 | What do the Uterus do? | Hollow muscular organ responsible for the development of the embryo and fetus |
| #5 | What do the Endometrium do? | Lining for the uterus |
| Varies | ||
| #1 | What do the Prostate gland do? | Secretes fluid that nourishes and protects sperm |
| #2 | What is an example of an animal that reproduces through parthenogenesis? | Some vertebrates |
| #3 | What is an example of an animal that reproduces through internal cross-fertilization? | Most mammals |
| #4 | Anaphase is the ____ step in mitosis | 3rd |
| #5 | gene that is almost always expressed | dominant gene |
| Final Question | |
| In humans, free-ear lobes are dominant to attached ear lobes. Two parents that are both heterozygous free are expecting a child. What are the chances that the child will have attached ear lobes? | 25% |