Math / Algebra

Question5. A II (tall) planl is crossed with a " (short planl). What percentuge of the ullspring will be tall? $\qquad$
6. A Tt plant is crossed with a Tl plant. What percentage of lhe ollspring will be shout? $\qquad$
7. A heterozygous round seeded plant (Rr) is crossed with a homozygous round seeded plant (RR). What pervertige of the oflsping will be homozygous (RR)? $\qquad$
8. A homozygous round seeted plant is crossed with a homozygous prinkled seeded plant what are the genulypes of the parents? $\qquad$ $x$ $\qquad$ What percentage of the ollspring will also be homozggous? $\qquad$
9. In pea plants purple flowers ure dominunt to white flowers. If two white nowered plants are cross, what peroentage of their offispring will be white flowered?
10. A white thowered plantis crossed with a plant that is heterorygous tor the tait. What percentage of the offspring will have purple thowers? $\qquad$
11. Wo plants, both hereroyygous for the gene that cantrols flower color are crossed. What percentage of their offspring will have purple thowers? $\qquad$ What percentage will have white flowers? $\qquad$
12. In guines pigs, the allele for short hair is dominant. What genotypo would a licterofygous short hained guinea pig have? $\qquad$ What genolype would a purebreeding short haired guinea pig have? $\qquad$ What genotype would a long haired guinea pig have? $\qquad$
13. Show the cross for a pure breeding short haired guinea pig and a long haired guinea pig what percentage of the uflspring will have shor hair? $\qquad$
14. Show the cross for two heteropygous guinca pigs. What percentage of the offspring will have short hair'? $\qquad$ What percentage of the offspring will have long hair? $\qquad$
15. Twn short haired guinca pies anc mated several times, Out of 100 oftispring, 25 of them have long hair. What are the probable genotypes of the parents? $\qquad$ $x$ $\qquad$ Show the croos to prove it!

Studdy Solution

STEP 1

1. We are dealing with basic Mendelian genetics problems.
2. Dominant and recessive traits are involved.
3. Each problem involves determining the genotype or phenotype of offspring based on the genotypes of the parents.
4. The problems involve either monohybrid or dihybrid crosses.

STEP 2

1. Problem 5: Determine the percentage of tall offspring from a cross between a tall and short plant.
2. Problem 6: Determine the percentage of short offspring from a cross between two Tt plants.
3. Problem 7: Determine the percentage of homozygous round offspring from a cross between Rr and RR plants.
4. Problem 8: Determine the genotypes of parents and percentage of homozygous offspring from a cross between homozygous round and wrinkled plants.
5. Problem 9: Determine the percentage of white-flowered offspring from a cross between two white-flowered plants.
6. Problem 10: Determine the percentage of purple-flowered offspring from a cross between a white-flowered plant and a heterozygous purple-flowered plant.
7. Problem 11: Determine the percentage of purple and white-flowered offspring from a cross between two heterozygous plants.
8. Problem 12: Determine the genotypes for different hair types in guinea pigs.
9. Problem 13: Determine the percentage of short-haired offspring from a cross between a pure-breeding short-haired and a long-haired guinea pig.
10. Problem 14: Determine the percentage of short and long-haired offspring from a cross between two heterozygous guinea pigs.
11. Problem 15: Determine the probable genotypes of parents from the offspring data and show the cross.

STEP 3

For Problem 5, a tall plant (TT) is crossed with a short plant (tt). Since tall is dominant, all offspring will be Tt (tall).
Percentage of tall offspring = 100%.

STEP 4

For Problem 6, a Tt plant is crossed with another Tt plant. The Punnett square is:
$\begin{array}{c|c|c} & T & t \\ \hline T & TT & Tt \\ \hline t & Tt & tt \\ \end{array}$
Percentage of short offspring (tt) = 25%.

STEP 5

For Problem 7, a heterozygous round (Rr) is crossed with a homozygous round (RR). The Punnett square is:
$\begin{array}{c|c|c} & R & R \\ \hline R & RR & RR \\ \hline r & Rr & Rr \\ \end{array}$
Percentage of homozygous round (RR) offspring = 50%.

STEP 6

For Problem 8, a homozygous round (RR) is crossed with a homozygous wrinkled (rr). The genotypes of the parents are RR and rr.
The Punnett square is:
$\begin{array}{c|c|c} & R & R \\ \hline r & Rr & Rr \\ \hline r & Rr & Rr \\ \end{array}$
Percentage of homozygous offspring = 0%.

STEP 7

For Problem 9, two white-flowered plants (both recessive, ww) are crossed. All offspring will be ww (white).
Percentage of white-flowered offspring = 100%.

STEP 8

For Problem 10, a white-flowered plant (ww) is crossed with a heterozygous purple-flowered plant (Pp). The Punnett square is:
$\begin{array}{c|c|c} & P & p \\ \hline w & Pw & pw \\ \hline w & Pw & pw \\ \end{array}$
Percentage of purple-flowered offspring (Pw) = 50%.

STEP 9

For Problem 11, two heterozygous plants (Pp) are crossed. The Punnett square is:
$\begin{array}{c|c|c} & P & p \\ \hline P & PP & Pp \\ \hline p & Pp & pp \\ \end{array}$
Percentage of purple-flowered offspring (PP or Pp) = 75%. Percentage of white-flowered offspring (pp) = 25%.

STEP 10

For Problem 12, the genotypes are: - Heterozygous short-haired guinea pig: Ss - Purebreeding short-haired guinea pig: SS - Long-haired guinea pig: ss

STEP 11

For Problem 13, a pure-breeding short-haired (SS) is crossed with a long-haired (ss). The Punnett square is:
$\begin{array}{c|c|c} & S & S \\ \hline s & Ss & Ss \\ \hline s & Ss & Ss \\ \end{array}$
Percentage of short-haired offspring = 100%.

STEP 12

0 For Problem 14, two heterozygous guinea pigs (Ss) are crossed. The Punnett square is:
$\begin{array}{c|c|c} & S & s \\ \hline S & SS & Ss \\ \hline s & Ss & ss \\ \end{array}$
Percentage of short-haired offspring (SS or Ss) = 75%. Percentage of long-haired offspring (ss) = 25%.

STEP 13

1 For Problem 15, two short-haired guinea pigs produce 25% long-haired offspring. The probable genotypes of the parents are Ss x Ss.
The Punnett square is:
$\begin{array}{c|c|c} & S & s \\ \hline S & SS & Ss \\ \hline s & Ss & ss \\ \end{array}$
This cross supports the offspring ratio observed.

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Studdy Solution

STEP 1

1. We are dealing with basic Mendelian genetics problems.
2. Dominant and recessive traits are involved.
3. Each problem involves determining the genotype or phenotype of offspring based on the genotypes of the parents.
4. The problems involve either monohybrid or dihybrid crosses.

STEP 2

STEP 3

For Problem 5, a tall plant (TT) is crossed with a short plant (tt). Since tall is dominant, all offspring will be Tt (tall).
Percentage of tall offspring = 100%.

STEP 4

For Problem 6, a Tt plant is crossed with another Tt plant. The Punnett square is:
$\begin{array}{c|c|c} & T & t \\ \hline T & TT & Tt \\ \hline t & Tt & tt \\ \end{array}$
Percentage of short offspring (tt) = 25%.

STEP 5

For Problem 7, a heterozygous round (Rr) is crossed with a homozygous round (RR). The Punnett square is:
$\begin{array}{c|c|c} & R & R \\ \hline R & RR & RR \\ \hline r & Rr & Rr \\ \end{array}$
Percentage of homozygous round (RR) offspring = 50%.

STEP 6

For Problem 8, a homozygous round (RR) is crossed with a homozygous wrinkled (rr). The genotypes of the parents are RR and rr.
The Punnett square is:
$\begin{array}{c|c|c} & R & R \\ \hline r & Rr & Rr \\ \hline r & Rr & Rr \\ \end{array}$
Percentage of homozygous offspring = 0%.

STEP 7

For Problem 9, two white-flowered plants (both recessive, ww) are crossed. All offspring will be ww (white).
Percentage of white-flowered offspring = 100%.

STEP 8

For Problem 10, a white-flowered plant (ww) is crossed with a heterozygous purple-flowered plant (Pp). The Punnett square is:
$\begin{array}{c|c|c} & P & p \\ \hline w & Pw & pw \\ \hline w & Pw & pw \\ \end{array}$
Percentage of purple-flowered offspring (Pw) = 50%.

STEP 9

For Problem 11, two heterozygous plants (Pp) are crossed. The Punnett square is:
$\begin{array}{c|c|c} & P & p \\ \hline P & PP & Pp \\ \hline p & Pp & pp \\ \end{array}$
Percentage of purple-flowered offspring (PP or Pp) = 75%. Percentage of white-flowered offspring (pp) = 25%.

STEP 10

For Problem 12, the genotypes are: - Heterozygous short-haired guinea pig: Ss - Purebreeding short-haired guinea pig: SS - Long-haired guinea pig: ss

STEP 11

For Problem 13, a pure-breeding short-haired (SS) is crossed with a long-haired (ss). The Punnett square is:
$\begin{array}{c|c|c} & S & S \\ \hline s & Ss & Ss \\ \hline s & Ss & Ss \\ \end{array}$
Percentage of short-haired offspring = 100%.

STEP 12

0 For Problem 14, two heterozygous guinea pigs (Ss) are crossed. The Punnett square is:
$\begin{array}{c|c|c} & S & s \\ \hline S & SS & Ss \\ \hline s & Ss & ss \\ \end{array}$
Percentage of short-haired offspring (SS or Ss) = 75%. Percentage of long-haired offspring (ss) = 25%.

STEP 13

1 For Problem 15, two short-haired guinea pigs produce 25% long-haired offspring. The probable genotypes of the parents are Ss x Ss.
The Punnett square is:
$\begin{array}{c|c|c} & S & s \\ \hline S & SS & Ss \\ \hline s & Ss & ss \\ \end{array}$
This cross supports the offspring ratio observed.

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Studdy Solution

STEP 1

1. We are dealing with basic Mendelian genetics problems.2. Dominant and recessive traits are involved.3. Each problem involves determining the genotype or phenotype of offspring based on the genotypes of the parents.4. The problems involve either monohybrid or dihybrid crosses.

STEP 2

STEP 3

For Problem 5, a tall plant (TT) is crossed with a short plant (tt). Since tall is dominant, all offspring will be Tt (tall).Percentage of tall offspring = 100%.

STEP 4

For Problem 6, a Tt plant is crossed with another Tt plant. The Punnett square is:TtTTTTttTttt\begin{array}{c|c|c} & T & t \\ \hline T & TT & Tt \\ \hline t & Tt & tt \\ \end{array}Tt​TTTTt​tTttt​​Percentage of short offspring (tt) = 25%.

STEP 5

For Problem 7, a heterozygous round (Rr) is crossed with a homozygous round (RR). The Punnett square is:RRRRRRRrRrRr\begin{array}{c|c|c} & R & R \\ \hline R & RR & RR \\ \hline r & Rr & Rr \\ \end{array}Rr​RRRRr​RRRRr​​Percentage of homozygous round (RR) offspring = 50%.

STEP 6

STEP 7

For Problem 9, two white-flowered plants (both recessive, ww) are crossed. All offspring will be ww (white).Percentage of white-flowered offspring = 100%.

STEP 8

For Problem 10, a white-flowered plant (ww) is crossed with a heterozygous purple-flowered plant (Pp). The Punnett square is:PpwPwpwwPwpw\begin{array}{c|c|c} & P & p \\ \hline w & Pw & pw \\ \hline w & Pw & pw \\ \end{array}ww​PPwPw​ppwpw​​Percentage of purple-flowered offspring (Pw) = 50%.

STEP 9

STEP 10

For Problem 12, the genotypes are: - Heterozygous short-haired guinea pig: Ss - Purebreeding short-haired guinea pig: SS - Long-haired guinea pig: ss

STEP 11

For Problem 13, a pure-breeding short-haired (SS) is crossed with a long-haired (ss). The Punnett square is:SSsSsSssSsSs\begin{array}{c|c|c} & S & S \\ \hline s & Ss & Ss \\ \hline s & Ss & Ss \\ \end{array}ss​SSsSs​SSsSs​​Percentage of short-haired offspring = 100%.

STEP 12

STEP 13

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1. We are dealing with basic Mendelian genetics problems.
2. Dominant and recessive traits are involved.
3. Each problem involves determining the genotype or phenotype of offspring based on the genotypes of the parents.
4. The problems involve either monohybrid or dihybrid crosses.

For Problem 5, a tall plant (TT) is crossed with a short plant (tt). Since tall is dominant, all offspring will be Tt (tall).
Percentage of tall offspring = 100%.

For Problem 6, a Tt plant is crossed with another Tt plant. The Punnett square is:
$\begin{array}{c|c|c} & T & t \\ \hline T & TT & Tt \\ \hline t & Tt & tt \\ \end{array}$
Percentage of short offspring (tt) = 25%.

For Problem 7, a heterozygous round (Rr) is crossed with a homozygous round (RR). The Punnett square is:
$\begin{array}{c|c|c} & R & R \\ \hline R & RR & RR \\ \hline r & Rr & Rr \\ \end{array}$
Percentage of homozygous round (RR) offspring = 50%.

For Problem 9, two white-flowered plants (both recessive, ww) are crossed. All offspring will be ww (white).
Percentage of white-flowered offspring = 100%.

For Problem 10, a white-flowered plant (ww) is crossed with a heterozygous purple-flowered plant (Pp). The Punnett square is:
$\begin{array}{c|c|c} & P & p \\ \hline w & Pw & pw \\ \hline w & Pw & pw \\ \end{array}$
Percentage of purple-flowered offspring (Pw) = 50%.

For Problem 13, a pure-breeding short-haired (SS) is crossed with a long-haired (ss). The Punnett square is:
$\begin{array}{c|c|c} & S & S \\ \hline s & Ss & Ss \\ \hline s & Ss & Ss \\ \end{array}$
Percentage of short-haired offspring = 100%.