Chapter 11 Quiz

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Chapter 11 Quiz

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Great Video Introducing Gregor Mendel. One of the most notable biologist of date.

The chemical factors that determine traits, unknown to Gregor Mendel when he conducted his famous pea plant experiment, are *

Factors

Alleles

Genes

Traits

Gregor Mendel grew three generations of pea plants. The first generation (P1) was a cross between one true breeding white flowered pea plant and one purple flowered pea plant. All of the offspring from this cross were purple (F1). This seamed odd.....where did the trait for white flowers go? Unsettled by this result, Gregor Mendel crossed two of these purple plants (F1) and observed that 75% of the offspring where purple and that 25% where white. "Eureka!" he may have screamed! What did this experiment prove with the presence of a white flower in the third (F2) generation? *

Hint: Each statement is true. What did this SPECIFIC experiment prove?

That the two alleles for a gene are separated or segregated during fertilizing, causing differences in the expression of flower color

That living things have two alleles for a trait such as a color. Some traits are dominant while others are recessive. The F1 generation was purple because purple flowers are dominant.

When a dominant plant is crossed with a recessive plant, the offspring will produce hybrids with one dominant allele and one recessive allele. This is why the cross between two hybrids (F1) produced purple and white flowers

Which of the following is the genotype for an organism that is Homozygous dominant for Tallness (T)? *

I have no clue

Which of the following are phenotypes? CHECK ALL THAT APPLY *

Blue Eyes

Tallness

Brown Fur

Required

Mudskippers! What is a mudskipper? If you want to know check out this video. If not...quiz on!

Lets imagine you have three mudskippers. One black, one Oreo (black and white), and one white. You know that that black mudskippers genotype is BB, the black and white mudskipper is BW, and the white mudskipper is WW. What type of dominance can explain this? *

Codominance

Science!

Dominance

Incomplete Dominance

Reccesive

A trait that is controlled by more than one gene is a ___________ trait *

Imagine that you breed a black flower with a white flower and all of the offspring have grey flowers. What could explain this? *

Both the black and white alleles contribute to the color of the flower

Grey is dominant to black

Grey is dominant to white

Neither the black nor white allele is completely dominant

The relative locations of genes on chromosomes can be found on a *

Gene Key

Gene Site

Gene Plot

Gene Map

This Punnett square shows a cross between a woman (XX) and a man (XY).

If you know that a person with the XX genotype is female and a person with the XY genotype is male, what is the probability that their offspring will be female? *

50%

25%

75%

100%

Red flamingo feathers are dominant to blue flamingo feathers. What is the probability of the offspring between a red and blue flamingo being blue? *

25%

75%

100%

50%

This is the BEST video I have ever seen explaining Mendelian genetics. I will show it in class tomorrow but just incase you want a head start, here it is.

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