10 Questions
What term describes the conditions in which individuals have developed?
Environmental variation
During fertilization, what type of cell is formed when the chromosomes fuse?
Zygote
What is the term for a cell with half the normal number of chromosomes?
Haploid cell
Which of the following is an example of genetic variation in humans?
Blood group
What determines whether an individual has lobed or lobeless ears?
Genetic causes
What type of information does a zygote contain?
Diploid information
What is the term for the full number of chromosomes in a cell?
Diploid
Which factor can affect the characteristics of animal and plant species?
Climate
What kind of information is inherited from parents to determine biological sex?
Genetic information
What type of variation results from factors such as accidents, culture, and lifestyle?
Environmental variation
Study Notes
Genetics and Development
- The term that describes the conditions in which individuals have developed is environment.
Cell Formation and Chromosomes
- During fertilization, a zygote is formed when the chromosomes fuse.
- A cell with half the normal number of chromosomes is described as haploid.
- The full number of chromosomes in a cell is described as diploid.
Genetic Variation
- Genetic variation in humans can be seen in differences such as freckles, eye color, and ear shape.
- The presence or absence of lobes on an individual's ears is determined by their genetics.
Inheritance and Zygote
- A zygote contains genetic information inherited from both parents.
- The genetic information inherited from parents determines biological sex.
Variation and Factors
- Environmental factors such as accidents, culture, and lifestyle can contribute to variation in characteristics.
- Genetic variation can result from factors such as mutation and genetic drift.
Explore the factors contributing to variation within a species, including genetic inheritance, environmental influences, and the combination of both. Learn about the genetic information passed down from both parents and how it contributes to the unique traits of offspring.
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