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Answered: - ASSIGNMENT IV BIOL1010 Online Introduction to Biology The


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ASSIGNMENT

 

IV

 

BIOL1010 Online

 

Introduction to Biology

 

The following questions for you to answer are to prepare you

 

for the types of questions encountered on exams. Please

 

upload the answers to your instructor by the appropriate due

 

date.

 

1. Explain Mendel?s Law of Segregation.

 

2. Make a Punnett square of the following cross and answer

 

the questions below. A heterozygous orange flowered plant is

 

crossed with a homozygous white flowered plant. Orange

 

flowers are dominant.

 

a. Draw the Punnett square and submit it with your work.

 

b. What percentage of the offspring will be orange?

 

c. What percentage of the offspring will be white?

 

d. What is the genotype of the orange plants?

 

e. What is the genotype of the white plants?

 

f. What is the phenotypic ratio of this cross?

 

g. What is the genotypic ratio for this cross?

 

3. How does the dihybrid cross support the Law of

 

Independent Assortment?

 

4. What is hemophilia? How is it inherited? Make a pedigree

 

to illustrate its pattern of inheritance.

 

Include a key that explains your symbols.

 

5. Why is recombinant DNA technology so valuable to

 

society? Provide two specific examples to illustrate your

 

points.

 


 

6. What is the only way to produce new alleles? Do mutations

 

always result in a change in the final protein product? Explain.

 

7. Imagine two populations that are not currently isolated from

 

each other, but the potential exists for that isolation to occur.

 

Explain how mutations and gene flow can work in opposition

 

to each other to influence the DNA of these two populations.

 

8. Given the following DNA sequence (3' TACCAGGTAATC 5')

 

answer the questions below.

 

a. What is the complimentary DNA sequence?

 

b. What is the mRNA sequence generated during

 

transcription?

 

c. The introns are bolded. What is the sequence of the mature

 

mRNA?

 

d. What is the amino acid sequence?

 

9. Explain the difference between microevolution and

 

macroevolution.

 

10. MRSA, a type of Staph infection, is caused by a strain of

 

bacteria that is resistant to many types of antibiotics. Knowing

 

what you know about adaption and natural selection, describe

 

how it would have been possible for a bacterium that

 

previously could be easily treated with antibiotics to develop

 

such a severe resistance to their effects.

 

If you fax any portion of this assignment, please put your

 

name and your

 

instructor's name on each page. Thanks

 


 

 


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