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Chapter 12: Q. 5 (page 326)

Mendel performed hybridizations by transferring pollen from the _______ of the male plant to the female ova.

a. anther

b. pistil

c. stigma

d. seed

Short Answer

Expert verified

The correct answer is option a

Step by step solution

01

Step 1. Introduction

Hybridisation refers to the combination of different varieties of organisms to give a hybrid

02

Explanation of the correct options 

Option a is correct because pollen is found on anther of the male reproductive part of the plant.

03

Step 3. Explanation of the incorrect option

Option b is incorrect because the pistil is a female reproductive part of a flower.

Option c is incorrect because stigma is also found on the female part of a flower.

Option d is incorrect because the seed is an embryonic plant that germinates gives new plants.

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Most popular questions from this chapter

How many different offspring genotypes are expected in a trihybrid cross between parents heterozygous for all three traits when the traits behave in a dominant and recessive pattern? How many phenotypes? a. 64 genotypes; 16 phenotypes b. 16 genotypes; 64 phenotypes c. 8 genotypes; 27 phenotypes d. 27 genotypes; 8 phenotypes

Figure 12.12 What ratio of offspring would result from a cross between a white-eyed male and a female that is heterozygous for red eye color?

A farmer raises black and white chickens. To his surprise, when the first generation of eggs hatch all the chickens are black with white speckles throughout their feathers. What should the farmer expect when the eggs laid after interbreeding the speckled chickens hatch?

a. All the offspring will be speckled.

b. 75% of the offspring will be speckled, and 25% will be black.

c. 50% of the offspring will be speckled, 25% will be black, and 25% will be white.

d. 50% of the offspring will be black and 50% of the offspring will be white.

In a mating between two individuals that are heterozygous for a recessive lethal allele that is expressed in utero, what genotypic ratio (homozygous dominant:heterozygous: homozygous recessive) would you expect to observe in the offspring?

a. 1:2:1

b. 3:1:1

c. 1:2:0

d. 0:2:1

People with trisomy 21 develop Down鈥檚 syndrome. What law of Mendelian inheritance is violated in this disease? What is the most likely way this occurs?
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