Breeding Corn Corn Reproductive Structures Sexual reproduction is reproduction in which two parents contribute genetic material to the offspring Selective breeding is the process by which organisms with desirable traits are mated with the goal of producing even more desirable offspring ID: 178187
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Slide1
Activity 4
Breeding CornSlide2Slide3
Corn Reproductive StructuresSlide4
Sexual reproduction is reproduction in which two parents contribute genetic material to the offspring.
Selective breeding
is the process by which organisms with desirable traits are mated with the goal of producing even more desirable offspring.
Read the introduction.Slide5
How can information about the genetic makeup of plants help farmers breed plants for desirable traits?
ChallengeSlide6
Breeding Corn: First GenerationSlide7
Basic Genetics
An organism has two copies of the gene for each of its traits. These copies are called
alleles
.
A
dominant
trait
will mask another version of a trait.
A recessive trait will be hidden by a dominant trait.Slide8
Creating a
Punnett
SquareSlide9
Which describes the cross that produced ear A? Ear B?
Punnett
Square X
Punnett
Square Y
Punnett
Square ZSlide10
Breeding Corn: Second GenerationSlide11
How does a Punnett
square show the possible results of a cross between two individuals?
Analysis 1Slide12
What do you predict will happen if a purple corn plant with the genes
P
p is bred with a corn plant with purple kernels and the genes
PP? Explain your answer, and include a matching
Punnett
Square.
Analysis 3Slide13
How could scientists use selective breeding to help solve a sustainability challenge such as breeding a crop that can survive drought?
Analysis 4Slide14
How can information about the genetic makeup of plants help farmers breed plants for desirable traits?
Revisit the
ChallengeSlide15
allele
dominant
Punnett
square
recessive
selective breeding
sexual reproduction
trait
Key Vocabulary