Genetics Answers

Concentrate on the potential use of DNA technologies in solving future problems in medicine and industry. Discuss the reliability, cost and some advantages and disadvantages of the techniques (techniques such as microarray technology, protein analysis, Southern blotting, Western blotting, etc).

Use 2 genetic engineering examples from crop research/agriculture and 2 from medicine to demonstrate its usefulness.

1) In Humans, Loud (L) is dominant to quiet (l).  If we cross a Homozygous Dominant father (LL) with a Heterozygous mother (Ll) What percent of the offspring will be loud?  

Must complete punnett Square.

2) In cows, No Horns (N) is dominant to horns (n).  If we cross a bull that is heterozygous with a homozygous recessive cow, what will be the ratio of horns to no horns in the offspring?

Must complete punnett Square.

3)In West view students hyper (H) is dominant to self control (h).  If we cross heterozygous parents, what will the results be for all the offspring? Must complete a punnett square.

distinction standard, learners will research the strengths and weaknesses, advantages  and disadvantages of the genetic technologies explored in the relevant unit content. All sources consulted will be accurately referenced. They must use the research to support their own views, speculating in an informed manner about future uses of generic engineering technologies. They must provide counterarguments of the reliability and validity of the use of the technologies. 

For merit standard, learners will analyse the use of genetic technologies in relation to industry and/or medicine. The analysis will take into account the reasons and science behind the technologies, benefits to the relevant sector of industry or medicine, and include an appreciation  of efficacy and cost. This may be achieved effectively through the detailed examination of one  real-life example for each technology

Analyse the uses of genetic engineering technologies in industry and medicine

Research the strengths and weaknesses, advantages and disadvantages of genetic technologies (DNA extraction, DNA amplification, gel electrophoresis, and transformation of cells) to speculate, in an informed manner, about specific future uses of generic engineering technologies. Your counterarguments must include discussion of the reliability and validity of the use of the technologies.

Define DNA

what is the genotype of a colorblind man

Match the correct definition to the correct word:

1) allele A) geneticist that developed a model for genetic crosses

2) homozygous B) father of modern genetics

3) diploid C) having pairs of chromosomes

4) inbreeding D) factor that controls inheritance of traits

5) dominant E) observable characteristic

6) Mendel F) both alleles for a trait are the same

7) F1 generation G) offspring obtained after inbreeding for several generations

8) phenotype H) both alleles for a trait are different

9) F2 generation I) one of the forms of a specific gene

10) Punnett J) a particular characteristic of an organism

11) genes K) process of crossing individuals from the same family

12) pure lines L) a form of a gene that is only expressed if is the only form present

13) genotype M) results of a cross between purebred dominant with purebred recessive

14) recessive N) a form of a gene that is always expressed if present

15) heterozygous O) results of a dihybrid cross

16) trait P) specific set of alleles that code for a trait