Bio181-Quiz 6
... 2. In which phase of mitosis do centromeres divide and chromatids begin to separate? a) interphase; b) anaphase, c) prophase, d) telophase, e) metaphase 3. The cell produced by the fusion of an egg and a sperm is the?; a) gamete; b) haploid; c) zygote; d) germ line cell; e) somatic cell 4. Cells in ...
... 2. In which phase of mitosis do centromeres divide and chromatids begin to separate? a) interphase; b) anaphase, c) prophase, d) telophase, e) metaphase 3. The cell produced by the fusion of an egg and a sperm is the?; a) gamete; b) haploid; c) zygote; d) germ line cell; e) somatic cell 4. Cells in ...
C8 PowerPoint: Meiosis
... – Each has only 1 copy of the chromosomes (1 n) – Human ovum/ sperm has 23 chromosomes each – Haploids join in fertilization 23 pairs in diploid ...
... – Each has only 1 copy of the chromosomes (1 n) – Human ovum/ sperm has 23 chromosomes each – Haploids join in fertilization 23 pairs in diploid ...
Meiosis Notes
... The most important fact of mitosis is that each daughter cell has the exact same genetic make-up as the original cell. ...
... The most important fact of mitosis is that each daughter cell has the exact same genetic make-up as the original cell. ...
Cell Division Study Guide:
... Which type of reproduction produces very different offspring?____________________ Human body cells have _______________ total chromosomes _________ of them are the sex chromosomes - Having 2 X chromosomes (XX) makes you __________________________. - Having an X and a Y chromosome makes you _________ ...
... Which type of reproduction produces very different offspring?____________________ Human body cells have _______________ total chromosomes _________ of them are the sex chromosomes - Having 2 X chromosomes (XX) makes you __________________________. - Having an X and a Y chromosome makes you _________ ...
Genetics Vocab – Unit 4
... ● Incomplete Dominance - phenotype of a heterozygote is intermediate between the two homozygous parents; neither allele is dominant, but combine to display a new trait (ex: red flower + white flower = pink flower) ● Fertilization - joining of the sperm and egg. ● Polygenic Inheritance - one trait co ...
... ● Incomplete Dominance - phenotype of a heterozygote is intermediate between the two homozygous parents; neither allele is dominant, but combine to display a new trait (ex: red flower + white flower = pink flower) ● Fertilization - joining of the sperm and egg. ● Polygenic Inheritance - one trait co ...
Chromosomes and Cell Division!
... Histone: the protein that DNA wraps itself around before cell division Chromatids: one of the two strands of a chromosome that becomes visible during mitosis/meiosis Centromere: region of chromosome that holds sister chromatids together Autosome: body cells, non sex cells, exact copies of parent cel ...
... Histone: the protein that DNA wraps itself around before cell division Chromatids: one of the two strands of a chromosome that becomes visible during mitosis/meiosis Centromere: region of chromosome that holds sister chromatids together Autosome: body cells, non sex cells, exact copies of parent cel ...
Pipe Cleaner Genetics
... 4. In step 6, you should have just made 4 gametes (sperm or eggs). Pick another table that you would like to “mate” with. Choose one of your gametes to be involved in fertilization. If you have sperm, then the one you chose is the sperm cell that reached the egg and fertilized it first. If you have ...
... 4. In step 6, you should have just made 4 gametes (sperm or eggs). Pick another table that you would like to “mate” with. Choose one of your gametes to be involved in fertilization. If you have sperm, then the one you chose is the sperm cell that reached the egg and fertilized it first. If you have ...
-apsis = juncture (synapsis: the pairing of replicated homologous
... -apsis = juncture (synapsis: the pairing of replicated homologous chromosomes during prophase I of meiosis) a- = not or without (asexual: type of reproduction not involving fertilization) ***auto- = self (autosome: the chromosomes that do not determine gender) chiasm- = marked crosswise (chiasma: th ...
... -apsis = juncture (synapsis: the pairing of replicated homologous chromosomes during prophase I of meiosis) a- = not or without (asexual: type of reproduction not involving fertilization) ***auto- = self (autosome: the chromosomes that do not determine gender) chiasm- = marked crosswise (chiasma: th ...
Karyotype
... genes are inherited according to the same principles that Gregor Mendel discovered in his work with garden peas. However, in order to apply Mendelian genetics to humans, biologists must identify an inherited trait controlled by a single gene to ensure that the trait is actually inherited and not t ...
... genes are inherited according to the same principles that Gregor Mendel discovered in his work with garden peas. However, in order to apply Mendelian genetics to humans, biologists must identify an inherited trait controlled by a single gene to ensure that the trait is actually inherited and not t ...
MEIOSIS SEXUAL REPRODUCTION
... SEXUAL REPRODUCTION • A combination of the genetic material of two separate individuals • Humans have 46 chromosomes - 23 pairs • Humans reproduce by joining sperm and egg from two parents • If sperm and egg each had 46 chromosomes, the baby would have 92 • Therefore----- meiosis is the production o ...
... SEXUAL REPRODUCTION • A combination of the genetic material of two separate individuals • Humans have 46 chromosomes - 23 pairs • Humans reproduce by joining sperm and egg from two parents • If sperm and egg each had 46 chromosomes, the baby would have 92 • Therefore----- meiosis is the production o ...
Cell Division Vocabulary
... Proteins that can act as a trigger for cells to divide; “green lights” ...
... Proteins that can act as a trigger for cells to divide; “green lights” ...
chap 2-biology of propagation
... • Alloploidy Polyploid containing genetically different sets of chromosomes derived from 2 or more species ...
... • Alloploidy Polyploid containing genetically different sets of chromosomes derived from 2 or more species ...
The Human Genome
... humans are known as sex chromosomes, because they determine an individual's sex. • To distinguish them from the sex chromosomes, the remaining 44 chromosomes are known as autosomal chromosomes, or autosomes ...
... humans are known as sex chromosomes, because they determine an individual's sex. • To distinguish them from the sex chromosomes, the remaining 44 chromosomes are known as autosomal chromosomes, or autosomes ...
Chapter 9 - Advanced Biology
... ◦ Cutting the chromosome # in half makes it so that 2 parents can produce an offspring that is genetically unique, but still maintains the overall chromosome # for that species ...
... ◦ Cutting the chromosome # in half makes it so that 2 parents can produce an offspring that is genetically unique, but still maintains the overall chromosome # for that species ...
You have two types of cells in your body: somatic cells, and germ
... Autosomes chromosomes that contain genes for characteristics not directly related to the sex of an organism. Chromosome pairs 122 are autosomes Sex Chromosomes ones that control the development of sexual characteristics. Very different from one another. X and Y are standard XX indicates ...
... Autosomes chromosomes that contain genes for characteristics not directly related to the sex of an organism. Chromosome pairs 122 are autosomes Sex Chromosomes ones that control the development of sexual characteristics. Very different from one another. X and Y are standard XX indicates ...
Human Genetic Disorders
... genes are inherited according to the same principles that Gregor Mendel discovered in his work with garden peas. However, in order to apply Mendelian genetics to humans, biologists must identify an inherited trait controlled by a single gene to ensure that the trait is actually inherited and not t ...
... genes are inherited according to the same principles that Gregor Mendel discovered in his work with garden peas. However, in order to apply Mendelian genetics to humans, biologists must identify an inherited trait controlled by a single gene to ensure that the trait is actually inherited and not t ...
Cell Reproduction Study Guide
... d. What can happen in step G that can lead to genetic diversity? ...
... d. What can happen in step G that can lead to genetic diversity? ...
Name Date ______ Per ______
... DNA in your body cells is not passed on to your children. Germ cells, in contrast, are cells in your reproductive organs, the ovaries or the testes, that develop into gametes. Gametes are sex cells—ova, or eggs, in the female, and spermatozoa, or sperm cells, in the male. DNA in your gametes can be ...
... DNA in your body cells is not passed on to your children. Germ cells, in contrast, are cells in your reproductive organs, the ovaries or the testes, that develop into gametes. Gametes are sex cells—ova, or eggs, in the female, and spermatozoa, or sperm cells, in the male. DNA in your gametes can be ...
Meiosis I and II
... haploid (n) cells having ½ of the original chromosomes Each cell has a unique combination of 23 duplicated chromosomes ...
... haploid (n) cells having ½ of the original chromosomes Each cell has a unique combination of 23 duplicated chromosomes ...
Genetics Vocabulary Spring 2011
... to show the gametes of each parent and their possible offspring; a type of grid that can indicate all the possible outcomes of a genetic ...
... to show the gametes of each parent and their possible offspring; a type of grid that can indicate all the possible outcomes of a genetic ...
Chapter 13 - Warren County Schools
... an exact portion of DNA from the other homologue A small part of DNA from one parent is exchanged with the DNA from another ...
... an exact portion of DNA from the other homologue A small part of DNA from one parent is exchanged with the DNA from another ...
Chapter 10 / Chromosomes, Mitosis, and Meiosis I. Introduction
... 1. all individuals of a particular species of organism have the same normal number of chromosomes per cell --determined through karyotyping 2. different species could have the same number of ...
... 1. all individuals of a particular species of organism have the same normal number of chromosomes per cell --determined through karyotyping 2. different species could have the same number of ...
GENETICS SOL REVIEW – 2015 PART II Name ____________________________
... Process of cells reduction division of chromosomes; produces gametes Reproductive cell; eggs and sperm Specific characteristics Traits determined by genes located on the X chromosome In the first meiotic division chromosomes exchange segments of their DNA The likelihood, or chance, something will ha ...
... Process of cells reduction division of chromosomes; produces gametes Reproductive cell; eggs and sperm Specific characteristics Traits determined by genes located on the X chromosome In the first meiotic division chromosomes exchange segments of their DNA The likelihood, or chance, something will ha ...
Ploidy
Ploidy is the number of sets of chromosomes in a cell. Usually a gamete (sperm or egg, which fuse into a single cell during the fertilization phase of sexual reproduction) carries a full set of chromosomes that includes a single copy of each chromosome, as aneuploidy generally leads to severe genetic disease in the offspring. The gametic or haploid number (n) is the number of chromosomes in a gamete. Two gametes form a diploid zygote with twice this number (2n, the zygotic or diploid number) i.e. two copies of autosomal chromosomes. For humans, a diploid species, n = 23. A typical human somatic cell contains 46 chromosomes: 2 complete haploid sets, which make up 23 homologous chromosome pairs.Because chromosome number is generally reduced only by the specialized process of meiosis, the somatic cells of the body inherit and maintain the chromosome number of the zygote. However, in many situations somatic cells double their copy number by means of endoreduplication as an aspect of cellular differentiation. For example, the hearts of two-year-old children contain 85% diploid and 15% tetraploid nuclei, but by 12 years of age the proportions become approximately equal, and adults examined contained 27% diploid, 71% tetraploid and 2% octaploid nuclei.Cells are described according to the number of sets present (the ploidy level): monoploid (1 set), diploid (2 sets), triploid (3 sets), tetraploid (4 sets), pentaploid (5 sets), hexaploid (6 sets), heptaploid or septaploid (7 sets), etc. The generic term polyploid is frequently used to describe cells with three or more sets of chromosomes (triploid or higher ploidy).