You cross a “true-breeding” purple flowered, tall pea plant (PPTT) with a “true-breeding” white flowered, dwarf pea plant (pptt) and you
get 100% purple, tall pea plants in your F1 generation
. Both parent plants are “true breeding” and all of the F1 offspring have purple flowers and round seeds.
When Mendel crossed a true-breeding purple plant with a true-breeding white plant it resulted in offspring that were?
Figure 2. In one of his experiments on inheritance patterns, Mendel crossed plants that were true-breeding for violet flower color with plants true-breeding for white flower color (the P generation). The resulting hybrids in
the F1 generation all had violet flowers
.
When Mendel crossed a true-breeding purple flowered pea plant with a true-breeding white flowered pea plant?
Mendel started by crossing a true-breeding purple-flowering plant with a true-breeding white-flowering plant. The F1 generation
contained all purple flowers
. The F2 generation results from self-pollination of F1 plants, and contained 75% purple flowers and 25% white flowers.
What resulted from a cross between a purple flower true-breeding pea plant and a white flower true-breeding pea plant?
When Mendel crossed a true-breeding purple-flowered pea plant with a true-breeding white-flowered pea plant,
he observed that all of the F1 offspring had purple flowers
. When these F1 plants were selfed, he found 3/4 were purple and 1/4 were white. … A) When the white progeny are selfed, only white progeny result.
When Mendel crossed true-breeding purple plants with true-breeding white plants all the offspring were purple because?
| Question Answer | Mendel crossed true-breeding purple-flowered plants with true-breeding white-flowered plants. All the offspring were purple because: the allele for purple-flowered plants is dominant . | Homozygous Organisms that have two identical alleles for a trait. |
|---|
When Gregor Mendel crossed pure breeding purple flowers with pure breeding white flowers What did he notice in the F1 offspring?
When Mendel crossed a true-breeding purple-flowered
pea plant
with a true-breeding white-flowered pea plant, he observed that all of the F1 offspring had purple flowers. When these F1 plants were selfed, he found 3/4 were purple and 1/4 were white.
Could two plants with purple flowers produce a plant with white flowers?
Can two plants with purple flowers produce offspring with white flowers?
Yes
, if both parents are heterozygous for the trait.
How many generations of plants did Mendel study traits in during his experiments?
Mendel carried out identical studies over
three generations
, (P, F
1
, and F
2
), for the other six characteristics and found in each case that one trait “disappeared” in the F
1
generation, only to reappear in the F
2
generation. Mendel studied a large number of plants, as shown in Table below.
When Mendel crossed a true-breeding plant with purple flowers and a true-breeding plant with white flowers all off spring had purple flowers This is because white flowers are?
Mendel crossed a true-breeding plant with round seeds and a true-breeding plant with wrinkled seeds. Which was true of every offspring of this cross? They would be all purple because
purple is the dominant trait and it blocks out the white recessive trait
.
When two true-breeding parental genotypes are crossed the offspring are referred to as the?
Their offspring are: Heterozygous wit the dominant phenotype. When two true-breeding parental genotypes are crossed, the offspring are referred to as the:
F1 generation
.
Do you think that a seed from a purple pea flower might grow into a pea plant that makes white flowers?
This means that after generations of self-breeding, the pea plant expressed only one version of the trait. After many generations a purple flowered plant
only produced plant never produced a white flowered plant
. The first, true-breeding generation, is called the parent, P generation.
What is the genotype of a pea plant that is true-breeding for purple flowers?
Since the purple-flowered plant is true Since the purple flowered plant is true breeding, it has two dominant alleles. The genotype of the purple-flowered plant is
PP
. Since white flowers are recessive, the only possible genotype for a white-flowered plant is pp.
What is one of the reasons why Gregor Mendel chose to study pea plants?
Mendel studied inheritance in peas (Pisum sativum). He chose peas
because they had been used for similar studies, are easy to grow and can be sown each year
. Pea flowers contain both male and female parts, called stamen and stigma, and usually self-pollinate.
What are Mendel’s factors called today?
Mendel’s “factors” are now known to be
genes encoded by DNA
, and the variations are called alleles.
When Mendel crossed a true-breeding tall plant with a true-breeding short plant the f1 offspring were?
| Question Answer | When Gregor Mendel crossed true-breeding tall plants with true-breeding short plants, all of the offspring were tall because the allele for tall plants is dominany | The principles of probability can be used to predict the traits of the offspring produced by genetic crosses |
|---|
Why did Mendel use true-breeding pea plants?
By experimenting with true-breeding pea plants,
Mendel avoided the appearance of unexpected traits in offspring
that might occur if the plants were not true breeding. The garden pea also grows to maturity within one season, meaning that several generations could be evaluated over a relatively short time.
