Question

Genetics Unit 4 Test Review 15-16
1. Which of Mendel’s principals is responsible for producing recessive traits, such as albinism?

2. What are allele combinations?

3. When do alleles undergo segregation?

4. What do you call cells with only 1 allele per gene?

5. What is codominance and list an example

6. How did Hershey-chase prove that DNA was genetic material?

7. What are the component parts of DNA?

8. Compare replication of the leading strand versus the lagging strand.

9. How does DNA help investigators solve crimes?

10. What occurs during transcription?

Answer 1

11. How many nucleotides are necessary to code for 1 single amino acid?

12. What determines which amino acid is added to a growing polypeptide chain?

13. What are possible effects of a gene mutation?

14. What are operons and how do they help prokaryotes (bacteria)?

15. What is central theme of molecular biology?

16. How many chromosomes does a normal human have?

17. QUESTION UNDER REVIEW. ALL ANSWERS ARE WORTH CREDIT

18. What are possible consequences of inbreeding?

19. Describe transgenic organism and list an example

20. What are some problems associated with genetically modified organisms used for food?

21. How do bases in DNA pair together?

22. Be able to calculate the percentages of bases in an organism.

23. What do you call the complementary nucleotides, found on tRNA, that pair with mRNA?

24. QUESTION UNDER REVIEW, ENTER THE WORD “ZERO” FOR THIS QUESTION

25. How can you combine characteristics of two different organisms?

26. Describe the possible effects of a mutation on an organism. Describe an example for each effect you mention.

27. Complete a dihybrid cross and list all possible genotypes and phenotypes. List probabilities of each genotype.

28. Why does meiosis produce daughter cells that are genetically different from each other?

29. What is the importance of gene regulation during an organism’s development?

30. How do scientists use genetic engineering to help individuals with lactose intolerance?

Answer 2

plz help any one

Answer 3

One Question At A Time!

And Welcome To Openstudy!

Answer 4

k

Answer 5

@Awolflover1

Answer 6

1. The principle of dominance, which states that some alleles are dominant and some are recessive

Answer 7

2. NOTE: this one is more of a guess, so take it with a grain of salt. If it doesn't sound right to you, I would check out co-dominance, multiple alleles, and polygenic traits.
Genes can exist in multiple variations, call alleles. Allele combinations are the combination of alleles for a specific gene that you inherit from your mom and dad.

Answer 8

3. Genes undergoes segregation during meiosis (more specifically, anaphase where the crossed-over homologous chromosomes are pulled apart with spindle fibers to opposite sides of the cell).

Answer 9

4. A haploid cell

Answer 10

(haploid literally mean "one set")

5. Codominance is like when a dog has spots or a chicken is erminette. Both alleles are clearly expressed.

Do you think you can do the rest on your own? Is there any specific concepts you need help with? I know this kind of thing can be tough to understand, so let me know if you do! :) I'll be happy to help.