Mendel's Laws of Inheritance

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Questions and Answers

What is incomplete dominance?

When one allele is completely dominant over the other.

When both alleles produce non-functional enzymes.

When one allele is not completely dominant over the other. (correct)

When both alleles are equally dominant over each other.

What did Mendel investigate in garden pea plants?

The impact of water availability on plant growth

The role of sunlight in photosynthesis

Characters with opposing traits (correct)

The effect of fertilizer on plant growth

What did Mendel investigate in garden pea plants?

Their response to different fertilizers

Their characters manifested as two opposing traits (correct)

Their photosynthesis process

Their reproductive organs

What is the result of co-dominance?

The F1 generation resembles both parents. Signup and view all the answers

What technique did Mendel use to study the inheritance of one gene in pea plants?

Cross-pollination Signup and view all the answers

What was unique about Mendel's investigations?

They applied statistical analysis and mathematical logic to problems in biology for the first time Signup and view all the answers

What was the proportion of dwarf plants in the F2 generation in Mendel's experiments?

1/4th Signup and view all the answers

What did Mendel observe when he crossed tall and dwarf pea plants?

All the F1 progeny plants were tall Signup and view all the answers

How do dominant alleles affect phenotype?

They produce the original phenotype Signup and view all the answers

What did Mendel find when he self-pollinated the tall F1 plants?

Some of the offspring were tall and some were dwarf Signup and view all the answers

What was significant about Mendel's investigations in biology?

He applied statistical analysis and mathematical logic to problems in biology for the first time Signup and view all the answers

What is the I gene responsible for in humans?

Blood type Signup and view all the answers

What did Mendel propose based on his experiments with garden pea plants?

The laws of inheritance in living organisms Signup and view all the answers

Which alleles are completely dominant over i?

I A and I B Signup and view all the answers

What was the proportion of dwarf plants in the F2 generation?

1/4th Signup and view all the answers

Which allele expresses when I A and i are present?

I A Signup and view all the answers

How many genotypes of human ABO blood types are there?

6 Signup and view all the answers

Study Notes

Gregor Mendel conducted hybridisation experiments on garden peas in the mid-nineteenth century.
Mendel proposed the laws of inheritance in living organisms.
Statistical analysis and mathematical logic were applied to problems in biology for the first time during Mendel's investigations.
Mendel investigated characters in garden pea plants that were manifested as two opposing traits.
Mendel selected 14 true-breeding pea plant varieties, as pairs which were similar except for one character with contrasting traits.
Mendel crossed tall and dwarf pea plants to study the inheritance of one gene and observed that all the F1 progeny plants were tall.
Mendel self-pollinated the tall F1 plants and found that in the Filial2 generation some of the offspring were 'dwarf'.
The proportion of plants that were dwarf were 1/4th of the F2 plants while 3/4th of the F2 plants were tall.
Similar results were obtained with the other traits that Mendel studied.
The contrasting traits did not show any blending at either F1 or F2 stage.

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Description

Test your knowledge of Gregor Mendel's groundbreaking experiments on garden peas with our quiz! Learn about the laws of inheritance proposed by Mendel and how statistical analysis and mathematical logic were applied to biology for the first time during his investigations. Discover how Mendel selected true-breeding pea plant varieties with contrasting traits to study how genes are passed down to offspring. See if you can recall the results of Mendel's experiments and how they helped lay the foundation for modern genetics.