Multiple Choice
In the context of Mendel's experiments, which structure in a diagram of meiosis is referred to as a tetrad?
2
views
2. Mendel's Laws of Inheritance
Mendel's Experiments and Laws
Struggling with Genetics?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
The cross-fertilization of two different, but true-breeding, varieties of pea plants will _____.
A
result in offspring that are genetically identical to one of the parent plants
B
lead to offspring that are all homozygous for the traits in question
C
always produce offspring with intermediate phenotypes
D
produce offspring that are all heterozygous for the traits in question
Verified step by step guidance1
Identify the genetic makeup of the two true-breeding parent plants. Since they are true-breeding, each parent is homozygous for the trait but with different alleles (e.g., AA and aa).
Understand that cross-fertilization between these two homozygous parents will combine one allele from each parent in the offspring.
Recognize that the offspring will inherit one dominant allele from one parent and one recessive allele from the other, making them heterozygous (e.g., Aa).
Recall that heterozygous individuals have two different alleles for a given gene, which explains why all offspring will be heterozygous in this cross.
Conclude that because all offspring are heterozygous, they will display the dominant phenotype, but their genotype will be different from either parent.
Related Videos
Related Practice
Mendel's Experiments and Laws practice set
Problem sets built by lead tutorsExpert video explanations