Biology Ch 9 and 10 Cell cycle/meiosis

What occurs during Prophase? (Both Mitotic and Meiotic)

What occurs during Metaphase? Both

What occurs during Anaphase?

What occurs in Telophase?

Sister chromatids form during which phase of the cell cycle?

Nuclear division is?
karyokinesis
Cytokinesis

During ______  _______ of meiosis the spindle re-forms and there are a haploid number of chromosomes present.

Gametes are formed through the cell cycle process of:
meiosis
mitosis
fertilization

The reproductive cell of males is called ______.

Characteristics of Turner syndrome?
Longer arms
broad chest
neck webbing
underdeveloped ovaries
underdeveloped uterus

A pair of homologous chromosomes in synapsis is called a _______.

gamete
bivalent
oocyte

Which phase of meiosis do sister chromatids separate and move to opposite poles?
metaphase II
Anaphase II
Prophase II
Telophase II

During Telophase II cytokinesis occurs resulting in two ____ cells.
Diploid/Haploid

A condition during which there is only one copy of a chromosome in a diploid organism is called?

When are the 3 cell cylce checkpoints?

What is the result if a checkpoint "fails"?

What is the difference between mitosis and cytokinesis?

During M Phase, the microtubular apparatus assmebles and binds to the _________.

A ring of _____ constricts the center of the cell causing cleavage furrows.

The ________ is assembled in the area between daughter nuclei of a prokaryotic cell.
Phragmoplast
nucliod
septum

During G1 the  ________ replicate.

During S phase the ____ replicates

During G2 phase all ________ are produced.

RB is responsible for interpreting growth and nutrient availability signals.
true/false
True False

What are the 4 steps of Binary Fission?

During ____ ____ of meiosis the spindle re-forms and there are a haploid number of chromosomes present.

a tetrad is also known as a _______.

An egg with 24 chromosomes is fertilized by a normal sperm resulting in a condition called _____.

During ______ ____ of meiosis, the spindle forms, chromosomes condense, the nuclear envelope fragments, the nucleolus disappears, homologous chromosomes pair off, and crossing-over occurs.

Homologous chromosomes lie side-by-side during ______ and form a tetrad.

The central purpose of meiosis is to increase or reduce the chromosome number from 2n to n?

During independent assortment, homologous chromosomes/genes segregate?

During _______ I of meiosis the spindle disappears and interkinesis follows.

____ ________ is a momosomic condition where the individual has only one sex chromosome (x).

A condition during which there is only one compy of a chromosome in a diploid organism.

In a plan'ts life cycle daughter cells of meiosis become haploid gametes/spores.

Gametes are formed in animals by a process called _____.

_______ is when homologous chromosomes fail to separate during meiosis i.
synapsis
crossing over
nondisjunction

A male with an extra X chromosome results in which syndrome?

Crossing-over occurs in meiosis/mitosis?

Bivalents occur during meiosis/mitosis?

Cytokinesis occurs during ______(Mitosis/Meiosis)  in _____ to _______ phase.

B53 is a protein used during G1 _____ and will trigger _____ if DNA is damaged.

What are somatic cells?

DNA in the nucleus is a tangled mass of threads called _____.
Chromatin
Chromatid
Kinetochores

Humans have __ chromosomes, ___ pairs. 

The 44 chromosomes other than the sex cells are called _____.

Chromosomes are made up of ____.

Genes are found in the nucleus and also found in the _______ of a cell.

Interkinesis occurs between ______ and ________ during meiosis.
Prophase I; Metaphase I
Telophase I; Prophase II

A ____ is formed by fusion of gametes.

RB of checkpoint 1, G1, interpretes growth and nutrient available.
true/false
True False

Only sperm and egg cells have _____ number (n).

The _____ is a region of constriction on a chromosome.

_______ are protein complexes that help in attaching spindles.

The _______, the main microtubule organizing center of the cell, divides before mitosis begins.

The protein ___ makes up the microtubules.

______ is when new tumors form which are distant from the primary tumor.

______ is when new blood essels form to service a tumor.

angiogenesis
metastasis

_______ get smaller as we get older, when cancer is present they do not get smaller.

Proto-oncogenes stimulate the ____ ____ and prevent _____.

Tumor-suppressor genes inhibit ____ ___ and promote ____ and G0 phase.

______ are unicellular.

Binary fission (prokaryotes) and mitosis (eukaryotes) ensure that the ________ cells are genetically ____ to the parent.

What are gametes?

______ ______ undifferentiated cells that can divide and become specialized.

_____ is nuclear division, reducing the chromosome number from diploid to the haploid number.

During Meiosis I, homologous chromosomes pair forming a _____.

Gametes fuse at _________, chromosomes donated by parents combine.

________ occurs between meiosis I and II.

Meiosis II Metaphase?

Meiosis Anaphase II?

Meiosis Telophase II and cytokinesis?

Meiosis requires ___ nuclear divisions, mitosis requires ___ nuclear division.

Meiosis produces ___ daughter nuclei and daughter cells, mitosis produces ___.

Daughter cells of mitosis and meiosis. 
haploid/diploid?

_____ syndrome is when a male has one Y but tow or more X chromosomes.

_____ syndrome is when males have two Y chromosomes.

________ syndrome is when chromosome 7 loses an end piece. Children look like pixies, poor academics, good verbal and musical skills, lack of elastin causes cardiovascular problems and skin aging.

_______ syndrome a deletion causing a small head, mentally retarded, facial abnormalities, abnormal glottis and larynx.

______ syndrom is when chromosomes 2 and 20 are exchanged, may produce some abnormalities

Gamatophyte have a ______ number of chromosomes, and sporophytes have a _____ number.