Contemporary Biology Per. 4
Halliwell/Mortara
Study Guide - Test #5 Chapter 6
1. What is heredity?
2. The study of heredity is called ______.
3. True or False. The heredity of a living thing is a blend of the characteristics of its parents.
4. Who is Gregor Mendel? What was his occupation and where did he live?
5. What is a true-breeding stock? (Also give an example)
6. The male sex cell in pea plants is called ______and the female sex cell is called ______.
7. Pea plants normally reproduce by ______, which means that the male and female sex cells come from the same plant.
8. What is cross-pollination?
9. What is a trait?
10. List the seven traits Mendel studied. Also list the contrasting forms, circling which form is dominant.
a.
b.
c.
d.
e.
f.
g.
11. Mendel called the parental plants the ______generation, which he used to get the ______generation, or first filial generation.
12. What did Mendel notice about the F1 generation compared to the P generation?
13. To get the ______generation, Mendel crossed two individuals from the F1 generation.
14. A ______is a unit of heredity that determines traits.
15. The two contrasting forms of a gene are called ______.
16. What is a dominant allele?
17. What is a recessive allele?
18. In rabbits, black fur is dominant to white fur.
A. What letter will you use to represent this trait?______
B. Write the letter combination representing the following genotypes, then write the corresponding phenotypes:
Genotype: Phenotype:
Homozygous dominant:
Heterozygous:
Homozygous recessive:
19. What is the difference between genotype and phenotype?
20. State the Law of Segregation.
21. State the Law of Independent Assortment.
22. What is meiosis?
23. ______cells are regular body cells that are ______, meaning they have two sets of chromosomes.
24. Reproductive cells called ______are ______, meaning they have only one set of chromosomes.
25. Fertilization is the fusing of haploid gametes that forms a diploid cell called a ______.
26. List the Stages of Meiosis (both Meiosis I and Meiosis II) and say what happens in each stage.
Meiosis I
1.Stage:
What happens?
2.Stage:
What happens?
3.Stage:
What happens?
4.Stage:
What happens?
Meosis II
1.Stage:
What happens?
2.Stage:
What happens?
3.Stage:
What happens?
4.Stage:
What happens?
27. During what stage of meiosis do tetrads form by synapsis?
28. During what stage of meiosis can crossing over occur?
29. What is left at the end of meiosis? (how many cells, what is their chromosome number)
30. What is the difference between incomplete dominance and codominance? Provide an example of each.
31. Human blood groups are an example of ______.
32. What are some traits that are controlled by polygenic inheritance (more than one gene)?
33. True or False: In terms of probability, past outcomes do not influence future outcome.
34. Why does probability apply to genetics?
***Also complete crosses worksheet
***Also study the Comparing Mitosis and Meoisis worksheet