Download Mendel`s Laws of Heredity Comprehension Questions

Mendel’s Laws of Heredity Comprehension Questions
1. Who was Gregor Mendel? (See the “Mendel’s Laws” notes.)
2. What were two factors responsible for Mendel’s success? (See the “Mendel’s Laws”
notes.)
3. Approximately how many pea plants did Mendel test during his experimentation heredity?
(See the “Mendel’s Laws” notes.) Why was it important for Mendel to count large numbers
of plants?
4. What is heredity? (See the “Mendel’s Laws” notes.)
5. A trait is a genetically determined characteristic or condition. Describe one physical trait
that you probably inherited.
6. What is the branch of biology that deals with heredity? (See the “Mendel’s Laws” notes.)
7. What are gametes? What gamete do you produce?
8. Why are gametes described as being haploid? (See the “Mendel’s Laws” notes.)
9. What is the diploid number of chromosomes in human cells? (See the “Mendel’s Laws”
notes.)
10. Flowering plants (like garden pea plants) produce sexually. Both male and female gametes
are in the same flower. The male gamete, called pollen, is on the ____________________
of the stamen whereas the female gamete is in ovary at the base of the
___________________ of the pistil. (See the “Mendel’s Laws” notes.)
11. What is fertilization? (See the “Mendel’s Laws” notes.)
12. What is pollination? (See the “Mendel’s Laws” notes.)
13. What do you think happens in the ovule of the pea plant flower over time once it has
been fertilized?
14. Explain how Mendel cross-pollinated the pea plants.
15. What is a monohybrid cross? (See the “Mendel’s Monohybrid Crosses” notes.)
16. What happened when Mendel crossed a purple flowered plant with a white flowered
plant? (See the “Mendel’s Monohybrid Crosses” notes.)
17. What happened when the purple flowered pea plants in the F1 generation were allowed to
self-fertilize? (See the “Mendel’s Monohybrid Crosses” notes.)
18. What are Mendel’s four “Rules or Laws” of Inheritance? Briefly describe each rule or
law. (See the “Mendel’s Monohybrid Crosses” notes.)
19. Describe these terms:
gene –
chromosome –
dominant trait –
recessive trait –
20. Draw and label a homologous pair of chromosomes showing the alleles for purple and
white flowers. (See the “Mendel’s Monohybrid Crosses” notes.)
21. Using the diagram page, explain how Mendel was able to determine within the pea plant
population he experimented with which forms of the traits were dominant and which forms
were recessive?