The phenotype of an organism
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The phenotype of an organism a. represents its genetic composition b. reflects all the traits that are actually expressed c. occurs only in dominant pure organisms d. cannot be seen. An organism having two different alleles for a trait is called a. heterozygote  

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The phenotype of an organism a. represents its genetic composition b. reflects all the traits that are actually expressed c. occurs only in dominant pure organisms d. cannot be seen


An organism having two different alleles for a trait is called

a. heterozygote  

b. homozygous dominant    

c. genotype   

d. monohybrid cross


If an individual possesses two recessive alleles for the same trait, the individual is said to be a. homozygous for the trait            

b. haploid for the trait c. heterozygous for the trait          

d. mutated


Mendel hypothesized that each trait is controlled by a factor, now called a

a. gene    

b. mate  

c. hybrid   

d. dominance


T = Tall t = short factor, now called a

Give the genotype for each gene combination:

TT:

tt:

Tt:

Homozygous dominant

Homozygous recessive

Heterozygous


R = round r = wrinkled factor, now called a

Give the allele combinations for the following

genotypes:

  • Heterozygous round seeds

  • Homozygous round seeds

  • Wrinkled seeds

    Give the phenotypes for the following

    genotypes:

    4. RR

    5. Rr

    6. rr

Rr

RR

rr

Homozygous dominant

Heterozygous

Homozygous recessive


Which sequence shows the factor, now called a most complex structure to the least complex structure?

  • gene – DNA – chromosome

  • DNA – gene – chromosome

  • gene – chromosome – DNA

  • chromosome – gene – DNA


1. Combining factor, now called a DNA from two different organisms is an example of

2. Combining the desirable qualities of 2 different organisms into one is referred to as

3. The process in which genetically identical offspring are produced by using the cells of an organism is called

genetic engineering

selective breeding

cloning


1. The type of selective breeding in which organisms with different traits are crossed is called

2. The type of selective breeding in which organisms with similar traits are crossed to preserve the trait is called

Hybridization.

inbreeding.


Gene / DNA

Genetic engineering

To produce insulin, growth hormone, clotting factors, genetically modified foods


  • The letter X most likely represents different traits are crossed is called (1.)   bacterial cells that are unable to synthesize insulin (2.)   human cells that are able to synthesize antibodies (3.)   bacterial cells that are able to synthesize insulin (4.)   human cells that are unable to resist antibiotics

  • What is this process an example of?

Genetic engineering


Genetic engineering has been utilized for the production of different traits are crossed is called

  • salivary amylase

  • human growth hormone

  • hydrochloric acid

  • uric acid crystals


When humans first domesticated dogs, there was relatively little diversity in the species. Today, there are many variations such as the German shepherd and the dalmation. This increase in diversity is most closely associated with

  • cloning of selected body cells

  • selective breeding

  • mitotic cell division

  • environmental influences on inherited traits


Is this a little diversity in the species. Today, there are many variations such as the German shepherd and the karyotype of a male or female? How do you know?

Male

Males have the X and Y sex chromosomes


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