Download Reading Questions Chapter 12 Mendel Reading

Holt Ch.12 Mendel Reading Questions
Website: my.hrw.com
user name: shaskell30
password: biology
Name _______________________________ Period ____ Score ________
Page 264 – 265
1. Describe some genetic variables in corn snakes.
Page 266 – 267
2. After college what did Gregor Mendel do?
3. In genetic what does cross mean?
Page 560 - 561
4. What is a flower?
5. What part of a flower produces pollen?
6. What part of a flower produces ovules?
7. Draw a flower and label the female parts, the male parts and the pretty petals.
Page 268 – 269
8. What are the different colors of pea plant flowers?
9. What is a hybrid?
10. Explain the difference between cross-pollination and self-pollination.
11. In Mendel’s experiment, he crossed a true-breeding purple flowered pea plant with a truebreeding white flowered pea plant. All the offspring grew up to have what color flowers?
Page 270 -271
12. When Mendel let the hybrid offspring of the 1st cross self-pollinate, what was the ratio of
purple flowered to white flowered offspring?
Page 270 - 271
13. Describe two mutations of fruit flies written about of this page.
Page 272 – 273
14. Mendel’s collect of hypothesis’ about heredity are called what?
15. What experiment of Mendel’s disproved the popular idea that traits from the parents blended
together in the offspring?
16. Each version of a gene is called a __________________________________.
17. Describe the difference between a dominate allele and a recessive allele.
Bonus
See pages 284 – 285
Bonus 1 - What is a gene?
Bonus 2 - What are genes made of?
Page 274 – 275
18. Why do scientists use a capital P to represent purple flowers and a lower case p to represent
white flowers in pea?
19. Explain what genotype and phenotype is.
20. What is heterozygous and homozygous?
21. What is meant by independent assortment?
22. What is meant by linked genes?
Page 276 -277
23. Fill out the punnett square below for the cross between two yellow seeded heterozygous
pea plants. Yellow (Yy) x (Yy)
Y
y
Y
y
24. What is the yellow to green seed ratio illustrated above?
Page 278 - 279
25. What is the mathematical formula for probability?
26. What is the probability of get heads when you flip a coin?
27. Flip a coin 10 times. How many times did it come up heads? According to probability, how
many times should it of been heads?
Page 280 – 281
28. What do the following pedigree symbols represent?
○ ●
□
Page 282 – 283
29. What is polygenic inheritance and give an example.
30. What is incomplete dominance and give an example.
31. What is multiple alleles and give an example.
32. What is codominance and give an example.
Page 284 – 285
33.
Give an example of a fox gene that is affected by the weather.
■