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6th grade-genetic
Study guide-heredity, genetics, & reproduction
Question | Answer |
---|---|
What term describes a section of DNA that controls specific cell activities and characteristics of every organism | Genes |
What term describes the passing of traits from parents to their offsprings? | Heredity |
What term describes a behavior that an organism is born with and does not have to learn? | Traits |
What term describes a type of reproduction in which a new organism is produced from one parent? | asexual reproduction |
What term describes the joining of a male sperm cell and a female egg cell? | sexual reproduction |
What term describes a physical characteristic resulting when no dominant gene is present? | recessive gene |
What term describes a tool that can show how genes combine? | punnett square |
What term describes a female sex cell? | egg |
What term describes the male sex cell | sperm |
What term describes the process of cell division by which sex cells are formed? | meiosis |
What term describes the joining of male and female cells in sexual reproduction? | fertilization |
Name one way an organism reproduces asexually? | fission |
Name a second way an organism reproduces asexually? | forming spores |
Name a third way an organism reproduces asexually? | forming new parts |
How many chromosomes do most human cells have? | 64 |
How many chromosomes are in most human sex cells? | 32 |
A dog has 78 chromosomes in each cell. How many chromosomes would you expect to find in a dog's sex cell? | 39 |
Name the scientist who created the Punnett Square? | Gregor Mendel |
All living things share the same ___________. | DNA |
A dog may inherit the potential to grow 22 kg buy may not reach that weight because of its __________. | Environment |
No matter what, _________. | No excuses. |
What term describes behavior that an organism is not born with and must acquire? | |
What term describes the process of selecting a few organisms with desired traits to serve as parents of the next generation? | |
Name the fourth way an organism can reproduce asexually? | |
What term describes a form of a trait that masks another form of the same trait? |