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Meiosis

Meiosis. Genetics. Evolution Diversity. Body systems 1. Body Systems 2. 100. 100. 100. 100. 100. 200. 200. 200. 200. 200. 300. 300. 300. 300. 300. 400. 400. 400. 400. 400. 500. 500. 500. 500. 500. Another name for a sex cell?. Answer- gamete.

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Meiosis

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  1. Meiosis Genetics Evolution Diversity Body systems 1 Body Systems 2 100 100 100 100 100 200 200 200 200 200 300 300 300 300 300 400 400 400 400 400 500 500 500 500 500

  2. Another name for a sex cell? Answer- gamete

  3. Two alleles for each trait separate during meiosis Answer – law of segregation.

  4. How many possible allele combinations in sex cells for a parent TtBb? Answer – four.

  5. What are the allele combinations in the sex cell for a parent that is TtBb. Answer – TB, Tb, tB, and tb.

  6. Crossing over and independent assortment create what condition in the offspring? Answer: genetic recombination or variation.

  7. An alternative form of a gene? Answers: allele.

  8. Down’s syndrome is an example of what type of genetic disorder? Answer: trisomy (an extra chromosome).

  9. In a cross involving incomplete dominance, what would Rr express? Answer: a heterozygous intermediate.

  10. Skin color and height are examples of what type of inheritance in humans? Answer: polygenic.

  11. Which statement is not true of carriers?A. They can pass a gene for a recessive disorder?B. They are heterozygous for a recessive disorder.C. They express the recessive trait.D. They have one dominant allele. Answer: C.

  12. Many scientists consider ____ to be the first coding system. Answer: RNA.

  13. Morphological adaptation in which one species resembles another? Answer: mimicry.

  14. Populations modified over time based on specific advantages of specific traits is called? Answer: Natural selection.

  15. What is a cladogram? Answer: A diagram that shows evolutionary relationships

  16. Name two components of natural selection. Answer: variation, inheritance, (mutations).

  17. What is the function of the subcutaneous part of the integumentary system? Answer: to regulate temperature.

  18. What cells are involved in bone repair? Answer: osteoblasts.

  19. Name 2 functions of the skeletal system. Answer: provide support and store minerals.

  20. DAILY DOUBLE! What is the purpose of ligaments? Answer: To connect muscles to bones.

  21. What is an action potential? Answer: This is how electrical signals are relayed .

  22. Part of the nervous system that carries impulses to internal organs. Answer: autonomic nervous system.

  23. Do reflexes? Answer: A. Require thought B. Happen gradually C. Happen involuntarily

  24. A ______ carries nerve impulses from the body cell to other neurons. Answer – axon.

  25. What causes oxygen to diffuse from the lungs into the capillaries? Answer: oxygen concentration is lower in the blood.

  26. An enzyme involved in the digestion of proteins in the stomach? Answer: pepsin.

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