Which of these is a result of selective breeding?

Which of these is a result of selective breeding?

Artificial selection/selective breeding has resulted in an increase in the efficiency of the animals and plants we breed, such as increasing milk yield from cows by continuously breeding selected cows with one another to produce a hybrid.

Which is an example of selective breeding planting peas?

Which is an example of selective breeding? Planting peas in a garden one year and planting green beans the next year to enrich the soil. Transferring pollen from flowers on one pea plant to flowers on another pea plant.

How does selective breeding reduce the gene pool?

Because of selective breeding , future generations of selectively bred plants and animals will all share very similar genes which will reduce variation. Genes and their different alleles within a population are known as its gene pool. animals can be selected that cannot cause harm, for example cattle without horns.

What are two reasons that Mendel chose to use pea plants for his experiments?

Mendel choose pea plants for his experiments because of the following reasons: (i) The flowers of this plant are bisexual. (ii) They are self-pollinating, and thus, self and cross-pollination can easily be performed. (iii) The different physical characteristics were easy to recognize and study.

What are 4 examples of selective breeding?

Different varieties of plants and animals with desired characteristics can be developed by selective breeding….New varieties

  • cows that produce lots of milk.
  • chickens that produce large eggs.
  • wheat plants that produce lots of grain.

Is selective breeding always successful?

Over many generations, a larger breed results. The same effect occurs when dogs with unusually long hair are selectively bred and a long-haired breed results. Selective breeding can take a long time but is very effective.

What is an example of selective breeding *?

Different varieties of plants and animals with desired characteristics can be developed by selective breeding. For example: cows that produce lots of milk. chickens that produce large eggs.

Which term also describes selective breeding?

Selective breeding is also known as artificial selection.

Is selective breeding good or bad?

Selective breeding allows the encouragement of plant and animal characteristics that are more beneficial to farmers. For example, if they have selectively bred cows, these livestock can produce more milk than those typically bred, and the gene can be passed on to their offspring.

What are the pros and cons of selective breeding?

Selective breeding is an extremely efficient way to good genetics in certain crops and livestock. However, if you are concerned about the cons of it, such as a genetic depression or discomfort to animals, the alternatives can be much worse, such as carrying out genetic modification.

What happened in Mendel’s first experiment?

In his first experiment, Mendel cross-pollinated two true-breeding plants of contrasting traits, such as purple and white flowered plants. The true-breeding parent plants are referred to as the P generation (parental generation).

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.

Where did the idea of plant breeding come from?

Plant breeding is an ancient activity, dating to the very beginnings of agriculture. Probably soon after the earliest domestications of cereal grains, humans began to recognize degrees of excellence among the plants in their fields and saved seed from the best for planting new crops.

Why did Mendel select garden pea plants for his experiment?

Mendel picked common garden pea plants for the focus of his research because they can be grown easily in large numbers and their reproduction can be manipulated. Pea plants have both male and female reproductive organs. As a result, they can either self-pollinate themselves or cross-pollinate with another plant.

Why are farmers selectively breeding plants and animals?

F or thousands of years farmers and herders have been selectively breeding their plants and animals to produce more useful hybrids . It was somewhat of a hit or miss process since the actual mechanisms governing inheritance were unknown.

How did Gregor Mendel contribute to plant breeding?

In the mid-1800s Gregor Mendel outlined the principles of heredity using pea plants and thus provided the necessary framework for scientific plant breeding. As the laws of genetic inheritance were further delineated in the early 20th century, a beginning was made toward applying them to the improvement of plants.