VOCABAULARY LIST CHAPTER 8
... single parent produces offspring that are genetically identical to the parent Autosome – any chromosome that is not a sex chromosome Binary fission – a form of asexual reproduction in single-celled organisms by which one cell divides into two cells of the same size Cell plate – the precursor of a ne ...
... single parent produces offspring that are genetically identical to the parent Autosome – any chromosome that is not a sex chromosome Binary fission – a form of asexual reproduction in single-celled organisms by which one cell divides into two cells of the same size Cell plate – the precursor of a ne ...
Inheritance of a Trait - Introduction
... Gregor Mendel was the first to identify that we inherit characteristics from both of our parents – a heritable factor we now know as ‘genes’. Due to mutations, genes can differ slightly between individuals resulting in different appearances and traits – their phenotype. Flies, like humans, are diplo ...
... Gregor Mendel was the first to identify that we inherit characteristics from both of our parents – a heritable factor we now know as ‘genes’. Due to mutations, genes can differ slightly between individuals resulting in different appearances and traits – their phenotype. Flies, like humans, are diplo ...
Ch. 10
... a). _______ ________ – offspring with same parental traits b). _______________ – offspring of parents that have different forms of a trait 1. The first generation (“Parent”) 2. The second generation (“1st Filial”) 3. The third generation (“2nd filial”) ...
... a). _______ ________ – offspring with same parental traits b). _______________ – offspring of parents that have different forms of a trait 1. The first generation (“Parent”) 2. The second generation (“1st Filial”) 3. The third generation (“2nd filial”) ...
Cell Division
... Across 4. Series of events a cell goes through as it grows & divides; the cell ___ 6. The phase in which DNA copies itself 8. Holds sister chromatids together 9. When a cell divides, it forms two _____ cells 10. Cells that can become any other cell type; ___ cells 11. Division of the cell nucleus 13 ...
... Across 4. Series of events a cell goes through as it grows & divides; the cell ___ 6. The phase in which DNA copies itself 8. Holds sister chromatids together 9. When a cell divides, it forms two _____ cells 10. Cells that can become any other cell type; ___ cells 11. Division of the cell nucleus 13 ...
chromosome
... -occurs in the formation of sex cells and results in 4 daughter cells each with half the number of chromosomes as the parental cell (haploid) -ensures genetic diversity - crossing over, different combinations of chromosomes within the resulting sex cells, fertilization results in different combinati ...
... -occurs in the formation of sex cells and results in 4 daughter cells each with half the number of chromosomes as the parental cell (haploid) -ensures genetic diversity - crossing over, different combinations of chromosomes within the resulting sex cells, fertilization results in different combinati ...
Document
... of chromosomes that contain information for protein synthesis. A zygote receives twenty-three pairs of chromosomes, one of each pair from the male parent and the other of each pair from the female parent. Twenty-two of these pairs are autosomes. Autosomes are chromosomes that contain genes for the s ...
... of chromosomes that contain information for protein synthesis. A zygote receives twenty-three pairs of chromosomes, one of each pair from the male parent and the other of each pair from the female parent. Twenty-two of these pairs are autosomes. Autosomes are chromosomes that contain genes for the s ...
Learner outcomes File
... - State that meiosis is a reduction division of diploid nucleus to form haploid nuclei. - Define homologous chromosomes. - Outline the process of meiosis including pairing of homologous chromosomes and crossing over, followed by two divisions which result in four haploid cells. - Explain how non- di ...
... - State that meiosis is a reduction division of diploid nucleus to form haploid nuclei. - Define homologous chromosomes. - Outline the process of meiosis including pairing of homologous chromosomes and crossing over, followed by two divisions which result in four haploid cells. - Explain how non- di ...
CHAPTER 14 VOCAB
... aneu- without (aneuploidy: a chromosomal aberration in which certain chromosomes are present in extra copies or are deficient in number) cyto- cell (cytological maps: charts of chromosomes that locate genes with respect to chromosomal features) hemo- blood (hemophilia: a human genetic disease caused ...
... aneu- without (aneuploidy: a chromosomal aberration in which certain chromosomes are present in extra copies or are deficient in number) cyto- cell (cytological maps: charts of chromosomes that locate genes with respect to chromosomal features) hemo- blood (hemophilia: a human genetic disease caused ...
Meiosis ppt
... – Spindle fibers pull tetrads to middle of a cell and line up together • Anaphase I – Homologous chromosomes separate and move to opposite ends of the cell • Telophase I – Chromosomes uncoil and cytoplasm divides to ...
... – Spindle fibers pull tetrads to middle of a cell and line up together • Anaphase I – Homologous chromosomes separate and move to opposite ends of the cell • Telophase I – Chromosomes uncoil and cytoplasm divides to ...
Chapter 12 Inheritance Patterns and Human Genetics
... E. Edward’s Syndrome A. Trisomy 18 B. Most children only live a few months C. All major organs affected ...
... E. Edward’s Syndrome A. Trisomy 18 B. Most children only live a few months C. All major organs affected ...
CH-14 Sect 14
... THE HUMAN GENOME SECTION 14-1 1. How do biologists make a karyotype? (pg 341-342) ___________________________________________________________ _____________________________________________________________________________________________________ ________________________________________________________ ...
... THE HUMAN GENOME SECTION 14-1 1. How do biologists make a karyotype? (pg 341-342) ___________________________________________________________ _____________________________________________________________________________________________________ ________________________________________________________ ...
File
... Most X-linked genes have no homologous loci on the Y chromosome. Most genes on the Y chromosome not only have no Xcounterparts, but they encode traits found only in males (e.g. testis-determining factor). ...
... Most X-linked genes have no homologous loci on the Y chromosome. Most genes on the Y chromosome not only have no Xcounterparts, but they encode traits found only in males (e.g. testis-determining factor). ...
Notes on Chromosomal Mutations
... Involves the production of extra copies of parts of the chromosome ...
... Involves the production of extra copies of parts of the chromosome ...
Section 6.1: Chromosomes and Meiosis
... It divides a diploid cell into a haploid cell. It is part of sexual reproduction. It is a form of, like mitosis, nuclear division. DNA is copied once, like in mitosis, but divided twice (only once in mitosis). • Meiosis sometimes called a “reduction division” because it reduces chromosome number by ...
... It divides a diploid cell into a haploid cell. It is part of sexual reproduction. It is a form of, like mitosis, nuclear division. DNA is copied once, like in mitosis, but divided twice (only once in mitosis). • Meiosis sometimes called a “reduction division” because it reduces chromosome number by ...
Polygenic Traits
... – if two copies are needed, there’s trouble – If the remaining allele is lethal, there’s trouble – the bigger the deletion, the more likely it will be ...
... – if two copies are needed, there’s trouble – If the remaining allele is lethal, there’s trouble – the bigger the deletion, the more likely it will be ...
Brooker Chapter 8
... • In simple translocations the transfer of genetic material occurs in only one direction =Unbalanced translocations ...
... • In simple translocations the transfer of genetic material occurs in only one direction =Unbalanced translocations ...
Meiosis PPT
... nonsister chromatids at the chiasmata. • Crossing over: segments of nonsister chromatids break and reattach to the other chromatid. • Chiasmata (chiasma) are the sites of crossing ...
... nonsister chromatids at the chiasmata. • Crossing over: segments of nonsister chromatids break and reattach to the other chromatid. • Chiasmata (chiasma) are the sites of crossing ...
ethylene - IQMrevision
... Part of a chromosome that codes for a particular characteristic such as eye colour. ...
... Part of a chromosome that codes for a particular characteristic such as eye colour. ...
Mitosis Diagram Worksheet
... 2. What are sister chromatids? When do the separate? ____________________________ _______________________________________________________________________ 3. During which phase do chromosomes first become visible? ________________________ 4. In multicellular organisms, the cell cycle produces groups ...
... 2. What are sister chromatids? When do the separate? ____________________________ _______________________________________________________________________ 3. During which phase do chromosomes first become visible? ________________________ 4. In multicellular organisms, the cell cycle produces groups ...
Practice Questions: Statistics, 4.1 and 4.2 (SL) 8. What does the
... Determine the combinations of alleles that would be present on each chromatid. Use the diagrams to indicate your answer. ...
... Determine the combinations of alleles that would be present on each chromatid. Use the diagrams to indicate your answer. ...
Lecture Notes
... chromosome); monosomies of the autosomes are rare. B) Nondisjunction is the most common mechanism leading to aneuploidy. 1) Nondisjunction in mitosis at an early cleavage division may lead to a clinically significant mosaicism. ...
... chromosome); monosomies of the autosomes are rare. B) Nondisjunction is the most common mechanism leading to aneuploidy. 1) Nondisjunction in mitosis at an early cleavage division may lead to a clinically significant mosaicism. ...
Karyotype
A karyotype (from Greek κάρυον karyon, ""kernel"", ""seed"", or ""nucleus"", and τύπος typos, ""general form"") is the number and appearance of chromosomes in the nucleus of a eukaryotic cell. The term is also used for the complete set of chromosomes in a species, or an individual organism.Karyotypes describe the chromosome count of an organism, and what these chromosomes look like under a light microscope. Attention is paid to their length, the position of the centromeres, banding pattern, any differences between the sex chromosomes, and any other physical characteristics. The preparation and study of karyotypes is part of cytogenetics. The study of whole sets of chromosomes is sometimes known as karyology. The chromosomes are depicted (by rearranging a photomicrograph) in a standard format known as a karyogram or idiogram: in pairs, ordered by size and position of centromere for chromosomes of the same size.The basic number of chromosomes in the somatic cells of an individual or a species is called the somatic number and is designated 2n. Thus, in humans 2n = 46. In the germ-line (the sex cells) the chromosome number is n (humans: n = 23).p28So, in normal diploid organisms, autosomal chromosomes are present in two copies. There may, or may not, be sex chromosomes. Polyploid cells have multiple copies of chromosomes and haploid cells have single copies.The study of karyotypes is important for cell biology and genetics, and the results may be used in evolutionary biology (karyosystematics) and medicine. Karyotypes can be used for many purposes; such as to study chromosomal aberrations, cellular function, taxonomic relationships, and to gather information about past evolutionary events.