Study sets, textbooks, questions
Upgrade to remove ads
Cell Reproduction and Mendelian Inheritance
Terms in this set (18)
During Cell Cycle When Does DNA replication take place?
The S stage of interphase
Which of the following statements regarding the function of mitosis is false?
Mitosis allows organisms to generate genetic diversity
List the stages of the cell cycle in order and describe what happens in each phase using the table below.
Interphase - Stage G1, S, G2 -> Before DNA synthesis, after.
Prophase - Chromosomes condense
Prometaphase- Nuclear membrane breaks down
Metaphase - Chromosomes line up in center of cell
Anophase - Chromotids separate to edge of cell
Telaphase - Daughter nuclei form
Cytokinesis - division of cytoplasm
If you look into your microscope and spot an unusual cell. Instead of the typical rounded cell shape, the cell has a very narrow middle separating two bulging ends.
In the G1 phase of interphase.
Meiosis produces haploid gametes from diploid parent cells. Define haploid and diploid.
Haploid: (1n) has 1/2 the number of diploid.
Diploid: (2n) each have 2 individual chromosomes
2 things that contribute to genetic diversity in Metaphase 1
1.) Crossing Over - hybrid chromatids
2.) 2nd Assortment - 2/23 potential chromatid combos
2 differences between mitosis and meiosis
Differences that occur in Mitosis
1.) 2 daughter cells form
2.)cells are identical to parent cells
Differences in Meiosis
1.) 4 daughter cell form
2.) cells are genetically different from parent cells
One difference between spermatogenesis and oogenesis is?
oogenesis begins in female fetus
Mendel's Law of segregation states that two members of an allele pair are distributed to separate gametes. In order for this to be true, the alleles must be
on a homologous pair of chromosomes
All the offspring of a cross between a black-eyed cockroach and an orange-eyed cockroach have black eyes. This means that the allele for black eyes is _________ the allele for orange eyes
List two X-linked disorders discussed in class
1.) Fragile X syndrome
2 autosomal recessive diseases
2.) cystic fibrosis
3 chromosomes (XXX)
How does trisomy
due to nondisjunction in meiosis
most common autosomal trisomy disorder
which term refers to the addition of a repeat segment of a chromosome
list two reasons why we need apoptosis
1.) kills off cancer cells
2.) cannot undergo meiosis if there is a mutation
How do new alleles arrive
Recommended textbook explanations
Nelson Science Perspectives 10
Christy C. Hayhoe, Doug Hayhoe, Jeff Major, Maurice DiGiuseppe
Kenneth R. Miller, Levine
Texas Science Fusion: Grade 7
Interactive Science: Human Body Systems
Sets with similar terms
Chapter 8 & 9 Cellular and Sexual Reproduction
Discover Biology 6th Edition: Chapter 7…