Genetics Challenge

Grade 9 & 12 GeneticsMrs. S. Pipke-Painchaud

&Mr. H. Weber

What is term called for the passing of the traits from parent to offspring?

_________________ (1)

What is the area of science called that studies the passing of characteristics from parent to offspring?

_________________ (1) Who is considered the Father of Genetics?

_________________ (1)

What does DNA stand for?

____________________________(1)

What is the structure of DNA?

___________________________ (1)

Who discovered the structure of DNA?

___________________________ (1)

How many chromosomes do humans possess? (2n – diploid)

_____________________ (1)

Where are the chromosomes found within the cell?

_____________________ (1)

What specific part of that organelle are they located in?

______________________(1)

In the sex chromosomes, XX codes for

____________________. (1)

In the sex chromosomes, XY codes for

____________________.(1)

Who (mother or father) determines the sex of the child?

_____________________(1)

What is the name of the gamete the female produces?

___________________________ (1) What is the name of the gamete the male produces?

___________________________ (1) When the female and male gamete combine, what do

they form? (the name for the single cell)

___________________________ (1)

The term used to describe two identical alleles for a particular trait?

_________________ (1)

The term used to describe two different alleles for a particular trait?

_________________ (1) If you were a carrier of a genetic disorder, which

of the two types listed would you need to possess?

_________________ (1)

If you saw a genotype Gg, how would you describe those alleles? ________________(1)

If you saw a genotype tt, how would you describe those alleles?

________________(1) If you saw a genotype RR, how would you

describe those alleles?________________(1)

How many base chemicals (nitrogen bases) are in DNA?

______________________ (1)

List the names of the base chemicals in DNA and how they pair together.

___________ & __________ (1)

___________ & ___________ (1)

What plant did Gregor Mendel work with?

____________________(1)

What is the scientific name for this plant?

____________________(1)

How many chromosomes does this species of plant possess?

____________________(1)

Bunnies have straight ears or floppy ears. Straight ears are dominant (EE or Ee) and floppy ears are recessive (ee). If a straight eared (Ee) bunny is crossed with a floppy eared bunny (ee).

Space for your calculations…

What percentage of the offspring will have straight ears?_________________________(1)

What percentage of the offspring will have floppy ears?_________________________(1)

What percentage are heterozygous straight eared?_________________________(1)

In Martians, green skin color is dominant over white. What would the phenotypic ratio be if you crossed a homozygous green skinned Martian with a heterozygous green skinned Martian?

i) What is the legend for this question?(1)

ii) What are the genotypes of the parents?(1)

__________ X ___________

iii) What is the phenotypic ratio? (1)

This process creates exact copies of cells. This process is called _________________ (1)

If you started with 1 cell with 46 chromosomes, you would end up with ______ cells with _____ chromosomes in each. (1)

What organism in Kingdom Animalia has 46 chromosomes?________ (1)

What process produces gametes?____________________ (1)

In humans, what two types of gamete cells are produced from this process?__________________ & _______________ (1)

How many chromosomes would each of these cells have? (Humans)

________________________ (1)

Define following words:Diploid (1)

Haploid (1)

If a Martian has 150 chromosomes, how many would its gametes have?

_______________ (1)

In the Lion King movie, Timon is an example of what type of animal?

________________(1)

What is Timon’s diploid number of chromosomes?

_________(1) What type of animal is

Pumba? ______________(1)

In Martians, large feet are dominant over small feet. What phenotypic ratio would result from a cross of a Martian with small feet and a Martian who is heterozygous for large feet?

Include your Key:

What are the genotypes of the parents? (1)

________ X ________

Phenotypic ratio:

__________________________________________________ (1)

What is the chance (probability) of having a Martian with small feet? (write the fraction)

____________________(1)

What genetic disorder results from 3 chromosomes at the 21st spot?

____________________ (1)

What disorder causes normal red blood cells to take on a half moon shape and unable to use hemoglobin correctly?

____________________ (1)

What does hemoglobin transport to the cells of the body?____________________

(1)

What genetic disorder would you have if you could not see the numbers in the image to the right? (enlarged images on the following slide)

____________________________(1)

What is the genetic disorder where the person’s blood does not clot properly?

____________________________(1)

What is the genetic disorder that produces thick sticky mucous in the lungs and digestive system?

____________________________(1)

Enlarged image for #18

References:

Chromosome #s: http://en.wikipedia.org/wiki/List_of_organisms_by_chromosome_count