NEW
Font size
WorksheetsThanksgiving Genetics Practice-22
Total questions: 11
Worksheet time: 11mins
This law describes how each homologous pair separates independently of any other pairs during Anaphase I of meiosis
Law of Segregation
Law of Independent Assortment
Law of Gravity
Law of Mathematical Order
What percentage of offspring from PpAa x ppAa would be expected to be heterozygous for both traits?
50%
75%
25%
0%
White fur is dominant to grey fur in mice. You want to know if a male you are thinking of purchasing is purebred. (of course the male is white!)
W= white w=grey
If you continued to breed the male with a heterozygous white female and they had offspring that were grey you would know that he was NOT a purebred (WW). Only it's impossible to know to without genetic testing if the female was heterozygous.
W= white w=grey
If you continued to breed the male with a grey female and they had offspring that were white and grey you would know that he was NOT a purebred (WW). Grey mice are homozygous and therefore only pass on the recessive allele the offspring so this would be the only test you could do.
W= white w=grey
There is no way to determine if he is truly purebred and you would just have to assume he was.
W= white w=grey
If you continued to breed the male (WW) with a homozygous white female you would only get white offspring if you got any grey mice then he would not be homozygous. Only it's impossible to know without genetic testing if the female is truly purebred.
Gamete production Tall is dominant to short in pea plants. And yellow seeds (A) are dominant to green seeds (a) in pea plants.
What gametes can the following organisms produce?
A plant that is heterozygous for both traits
TA, TA, Ta, Ta
Tt, Tt, Aa, Aa
TA, Ta, tA, ta
at, at, ta,TA
Gamete production Tall is dominant to short in pea plants. And yellow seeds (A) are dominant to green seeds (a) in pea plants.
What gametes can the following organisms produce?
A plant that is homozygous dominant for height and heterozygous for seed color
TA, TA, TA, Ta
TA, Ta, TA, Ta
TA, Ta, aT, at
ta, ta, TA, TA
Gamete production Tall is dominant to short in pea plants. And yellow seeds (A) are dominant to green seeds (a) in pea plants.
What gametes can the following organisms produce?
A plant that is homozygous recessive for both traits
ta, TA, ta, TA
ta, tt, aa, ta
ta, ta, TA, ta
ta, ta, ta, ta
Gamete production Tall is dominant to short in pea plants. And yellow seeds (A) are dominant to green seeds (a) in pea plants.
What gametes can the following organisms produce?
A plant that is homozygous recessive for height and homozygous dominant for seed color
tA, tA, tA, tA
tt, tt, AA, AA
tA, TA, Ta, ta
TT, ta, TT, ta
Tasting is dominant to non-tasting and tongue-rolling is dominant to non-tongue-rolling. A male who is heterozygous for both traits is crossed with a female who is heterozygous for both traits.
Genotype of male _____________ Genotype of female ____________________
All possible phenotypic combinations
12 Tasting and tongue roller
2 Tasting and non roller
1 non tasters and tongue roller
1 non taster and non roller
4 Tasting and tongue roller
4 Tasting and non roller
4 non tasters and tongue roller
4 non taster and non roller
9 Tasting and tongue roller
3 Tasting and non roller
3 non tasters and tongue roller
1 non taster and non roller
4 Tasting and tongue roller
8 Tasting and non roller
2 non tasters and tongue roller
2 non taster and non roller
Red flowers are dominant to white flowers. Tall stems are dominant to short stems. A plant that is homozygous dominant for flower color and heterozygous for height is crossed with a plant that is heterozygous for both traits.
12 Red and Tall stem
4 Red and short stem
0 white and Tall stem
0 white and short stem
4 Red and Tall stem
4 Red and short stem
4 white and Tall stem
4 white and short stem
8 Red and Tall stem
4 Red and short stem
4 white and Tall stem
0 white and short stem
9 Red and Tall stem
3 Red and short stem
3 white and Tall stem
1 white and short stem
In tomatoes, tall plants are dominant to short plants. Round fruit is dominant to oval. A tall plant with round fruit that is homozygous only is crossed with a short plant with oval fruit.
8Tall plant with Round fruit
8 Tall plant with oval fruit
0 short plants with Round fruit
0 short plants with oval fruit
16 Tall plant with Round fruit
0 Tall plant with oval fruit
0 short plants with Round fruit
0 short plants with oval fruit
9 Tall plant with Round fruit
3 Tall plant with oval fruit
3 short plants with Round fruit
1 short plants with oval fruit
12 Tall plant with Round fruit
4 Tall plant with oval fruit
0 short plants with Round fruit
0 short plants with oval fruit
In honeybees, black body color is dominant to yellow body color. Short bodies are dominant to long bodies. Cross a homozygous black, long-bodied bee with one that is homozygous recessive for both traits.
9 Black and Short bodied
3 Black and long bodied
3 yellow and Short bodied
1 yellow and long bodied
16 Black and Short bodied
0 Black and long bodied
0 yellow and Short bodied
0 yellow and long bodied
0 Black and Short bodied
16 Black and long bodied
0 yellow and Short bodied
0 yellow and long bodied
8 Black and Short bodied
0 Black and long bodied
0 yellow and Short bodied
8 yellow and long bodied
