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Standards: 7-2
Standards: 7-2

... 10. After the stain has set, get two paper towels and place your slide on one of them. Put a coverslip on the slide (on top of the salivary glands). Fold the second paper towel and place it on top of the coverslip. 11. Place your thumb on the paper towel over the coverslip and press down slowly and ...
Unit 6 Genetics and Heredity
Unit 6 Genetics and Heredity

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genome_mapping.pdf
genome_mapping.pdf

... markers you have used are noted on the map. These are also the same markers found on the data table. Your goal is to find a marker or series of markers that are most closely associated with this mutation. To do this • Look at the data sheet. Note that each individual has two chromosomes. • The indiv ...
Sex Linked / "X" Linked Genetics
Sex Linked / "X" Linked Genetics

... Sex Linked / "X" Linked Genetics Sex/Gender chromosomes = chromosomes that determine the gender of an organism.  In humans, females have two X chromosomes (genotype = XX). In humans, males have one X and one Y chromosome  (genotype = XY). The "X" chromosomes is the larger chromosome. The "Y"  chrom ...
Heredity
Heredity

... working with sex-linked genes because when females (XX) inherit a sex-linked gene, they receive two copies of the gene, one on each X chromosome. • In contrast, a male (XY) will inherit only one copy of the gene because only the X chromosome delivers the gene. • Whichever allele is on the X chromoso ...
mitosis and meiosis
mitosis and meiosis

... haploid gametes. Mitotic cell division produces new cells genetically identical to the parent cell. Meiosis increases genetic variation in the population. Each diploid cell undergoing meiosis can produce 2n different chromosomal combinations, where n is the haploid number. In humans the number is 22 ...
Genetics - FW Johnson Collegiate
Genetics - FW Johnson Collegiate

...  Genetics is the study of DNA in our body, how it relates to our physical characteristics and how those characteristics are inherited  DNA is our genetic material. It is found in our nucleus  The DNA molecule is clumped into long strands called chromosomes  Chromosomes contain the information th ...
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Biology Unit Review

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What is DNA? - Livingstone High School

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genetics
genetics

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Unit 6 Cell Growth and Reproduction
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... cells. In humans, your body cells have 46 chromosomes. How many chromosomes are in a sperm or egg cell if, when they come together to form a fertilized zygote, there are 46 chromosomes? Write the correct number of chromosomes next to the sperm and egg. ...
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... involved in the organizalion of the nucleolus. Thus, the diplOId species are considered to be secondary polyploids, ,mce pre­ sumably they have some of the baSK: chromosome lypes form­ ing part of their genome in duplicale or even m Irlplicate. The fact that chromosomes or the same lype wlthm or bel ...
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LINKAGE - TYPES OF LINKAGE AND ESTIMATION OF LINKAGE

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Chrom. I - ucsf biochemistry website
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... d. At this point, let’s assume that the specific Dpy and Unc genes are linked. From the F2 progeny plate (see above) you single out several Dpy animals, 1 per plate (again, you are certain that they have not mated). What do you expect to see phenotypically in their progeny (F3 relative to the starti ...
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... • Results in extensive genetic variation • Number of possible gametes = 2n where n is the haploid number • For humans, 223 = 8 million • Each individual represents one of (8 X 106)2 = 64 X 1012 possible genetic combinations from her parents ...
alleles - Winston Knoll Collegiate
alleles - Winston Knoll Collegiate

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Our Baby ! Names - Boone County Schools
Our Baby ! Names - Boone County Schools

... 1a. What is one phenotypic trait that is the same in Mom, Dad and baby dragon? 1b. Draw a Punnett square to show how your baby dragon inherited the genes that resulted in this trait. In the Punnett square, circle the genotype of your baby dragon. 1c. Suppose that Mom and Dad had a second baby. Would ...
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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.
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