Ch. 3- Chromosomes & Sexual Reproduction

Exam 1 Notes

Genome

Chromosome

Homolog Chromosome

Chromatin

Histones

Topioisomerases

Karotype

Meiosis

Synapsis

Tetrad

Loci

Gene

Allele

Single Nucleotide Polymorphism

Zygote

Gamete Selection

Mendalian Sampling

Sex Linked Inheritance

Sex Limited Inheritance

Sex Influenced Inheritance

How is the DNA within chromosomes organized? During interphase of the cell cycle? During the mitotic phase?

From a chromosomal standpoint, what is the difference between somatic cells and sex cells?

Describe the process of meiosis. What is the objective? What specific differences exist between the processes of meiosis and mitosis?

What is the functional difference between autosomal chromosomes and sex chromosomes? Does crossing over occur in sex chromosome during meiosis?

What factors contribute to the randomness of inheritance?

Consider a scenario in which your boss invests (according to your recommendation) a considerable amount of money in a superior mare and you chose to pay an outrageously high stud fee to mate her to an exceptional stallion, yet you ended up with a foal which is extremely inferior to either parent. How would you scientifically explain how this outcome is possible to your boss?

Explain how sex-linked traits occur.

Explain the difference between sex linked, sex limited, and sex influenced inheritance.