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There is a gene that determines the color of the peas the plant will produce. Genes can come in different versions. The pea “color” gene comes in a yellow version (Y) and a green version (y). Just like us, pea plants have two copies of most of their genes.
Which Colour is dominant in pea plants?
Explore Trait Dominant Expression Recessive Expression Color of seed albumen (Y) Yellow Green Color of flower (P) Purple White Form of ripe pods (I) Inflated Constricted Color of unripe pods (G) Green Yellow.
Why is pea yellow?
Fusarium wilt, root rot, Ascochyta blight, and downy mildew are all fungi that may afflict these crops and result in yellowing pea plants. Pea plants yellow at the base of the plant and stems wither and eventually die back. Spores are dispersed through contact, wind, and water.
What were the two color of flowers in pea plants?
Each gene can have different alleles. For example, one gene determines flower color in pea plants. Different versions of that same gene are alleles. The two different alleles here are purple flowers and white flowers.
What are the characteristics of pea plants?
During this time, Mendel observed seven different characteristics in the pea plants, and each of these characteristics had two forms (Figure 3). The characteristics included height (tall or short), pod shape (inflated or constricted), seed shape (smooth or winkled), pea color (green or yellow), and so on.
Why are peas not yellow?
There is a gene that determines the color of the peas the plant will produce. Genes can come in different versions. The pea “color” gene comes in a yellow version (Y) and a green version (y). Just like us, pea plants have two copies of most of their genes.
Why yellow pea is dominant?
Since all the heterozygous offspring are yellow, then the yellow allele must be dominant over the recessive green allele. The green allele didn’t disappear; its effect is not seen in heterozygotes. Peas are yellow when they have either two yellow alleles . . . . . . or one yellow allele and one green allele.
Is it possible for a 2 green pea plant to have a yellow offspring?
These offspring are said to be heterozygous, meaning that they have two different alleles for pea color. Despite the fact that both alleles are present in the offspring, the traits did not blend together to result in yellowish-green peas.
What Colour are yellow peas before they are grown?
Yellow Peas are “field peas”, which are meant to be used dried rather than eaten fresh. The skin (seed coat) of the peas is a light yellow. Inside, the peas are a darker yellow, though the colour fades when cooked. They are slightly larger than green peas.
Why have my pea plants gone pale?
Pea Plant Leaves Turning White If the leaves on your pea plant are turning white, you may have a fungus on your hands. Powdery mildew is a fungal disease that shows it’s presence by creating a white powder that spreads over the leaves of infected plants.
What was Mendel’s first experiment?
Mendel first experimented with just one characteristic of a pea plant at a time. He began with flower color. As shown in the Figure below, Mendel cross-pollinated purple- and white-flowered parent plants. The parent plants in the experiments are referred to as the P (for parent) generation.
Can two plants with purple flowers produce offspring with white flowers?
Can two plants with purple flowers produce offspring with white flowers? Yes, if both parents are heterozygous for the trait.
Why did Mendel use 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 3 conclusions were made after Mendel’s experiment?
—and, after analyzing his results, reached two of his most important conclusions: the Law of Segregation, which established that there are dominant and recessive traits passed on randomly from parents to offspring (and provided an alternative to blending inheritance, the dominant theory of the time), and the Law of Apr 1, 2014.
What is special about pea plant in genetics?
To study genetics, Mendel chose to work with pea plants because they have easily identifiable traits (Figure below). For example, pea plants are either tall or short, which is an easy trait to observe. Mendel also used pea plants because they can either self-pollinate or be cross-pollinated.
Which one of the following is most effective characteristics of pea plant?
Pea plants are a good choice because they are fast growing and easy to raise. They also have several visible characteristics that may vary. These characteristics, which are shown in Figure below, include seed form and color, flower color, pod form and color, placement of pods and flowers on stems, and stem length.
Can pea plants get too much sun?
ANSWER: For optimal growing results, peas need to be planted in an area that receives at least six to eight hours of full sunlight exposure daily. Pea plants will tolerate partial shade but they will grow slower than they otherwise would in a full sunlight location.
What kind of fertilizer do peas like?
Peas grow best in soil with a pH between 6 and 7.5. Use well-rotted manure or compost at planting. Continuous use of high phosphorus fertilizer such as 10-10-10 or 15-30-15, or high rates of manure or manure compost results in phosphorus buildup in the soil.
What was Mendel’s experiment with pea plants?
Mendel’s seminal work was accomplished using the garden pea, Pisum sativum, to study inheritance. This species naturally self-fertilizes, meaning that pollen encounters ova within the same flower. The flower petals remain sealed tightly until pollination is completed to prevent the pollination of other plants.
Are yellow pod dominant or recessive?
For pod color, there are two traits – green and yellow. Green pod color is dominant and yellow is recessive. The shape of the pod has two traits – inflated and constricted.
What happened to the green trait in Mendel’s pea plants Group of answer choices?
Mendel’s gene involved in pea color decides whether the chlorophyll in the pea will be broken down or degraded. When this gene isn’t working, the chlorophyll stays around and the pea is green. So in this case the recessive trait is indeed due to a broken gene.
