Punnett Squares
Please draw and complete a punnett square for a homozygous dominant and homozygous recessive cross using the letter 'A'
Aa, Aa, Aa, Aa
how many kinds of alleles are there? Name them.
2- Dominant and Recessive
What trait(s) do the turtle and the house cat have in common?
Vertebrate
Only some organisms have DNA.
False - ALL organisms have DNA
What is the other name for asexual reproduction?
cloning
Please complete a punnett square to show a homozygous recessive and a heterozygous cross using the letter 'R'
Rr, Rr, rr, rr
Fur pattern
F: spotted fur
f: solid-colored fur
If I want a dog with spotted fur, what would the possible genotype(s) be?
FF or Ff
please name the shared characteristics between the horse and wolf
Hair and vertebrates
T or F: the allele combination Yy would result in White flowers in a snapdragon.
FALSE- white is recessive; only yy will result in white flowers.
Please name one pro and one con of sexual reproduction
answers may vary...
If a homozygous dominant (BB) brown eyed parent and a heterozygous (Bb) brown eyed parent have offspring, what is the probability of them having offspring with blue eyes (bb)?
0%
Fur length
L: long fur
l: short fur
What would the genotype(s) be for a dog with short fur?
ll
The circles at A, B, C, and D on the cladogram represent common ancestors of who?
The Leopard and the House cat
T or F: one gene can code for multiple proteins
False! one gene can code for only one protein
Please tell me one pro and one con for asexual reproduction.
Answers may vary...
If the following offspring are born, what would the parent genotypes be?
PP, PP, Pp, Pp
PP and Pp
A snapdragon produces either yellow or white flowers. The dominant allele (Y) produces yellow flower color and the recessive allele (y) produces white color.
Which color of snapdragon (white or yellow) would you expect to be more common? Why?
Yellow, due to the fact that it is the dominant allele. There are more possible allele combinations for dominant traits, allowing it to be more common than the recessive.
TRUE OR FALSE: Leopards and house cats share less characteristics than horses and wolves.
False. They share MORE
Cells in different tissues or organs contain identical DNA.
True
WILD CARD!!!
Two dogs mate and have puppies. Both parent dogs are heterozygous for spotted fur. Please complete the punnett square and tell me the probability (percent) of having a solid fur puppy.
FF, Ff, Ff, ff ... 25% (recessive trait)
If a female child with colorblindness is born, what are her parents' genotypes?
XbY and XbXb
Tail length
T: long tail
t: short tail
What wuld the genotype(s) be for a dog with a long tail ?
TT or Tt
Why is knowing information about embryo development important? Use the dolphin as an example.
Embryo development can identify key characteristics and relationships that are not always apparent in adult relationships. Like with the dolphin, we are able to determine that the dolphin is actually categorized as a tetrapod due to the hind limbs that first start to appear and then disappear later on.
T or F: An offspring gets the same amount of DNA from each parent
True!
Explain how sexual reproduction leads to variation of traits in a population.
sexual reproduction involves the combining or two parents traits into one offspring. This means that new allele combinations are always being created. The increase in allele combinations increases variation, which will cause the increase within the population