How did I get this? Prenatal and neonatal screening Ultrasound
... Such congenital disorders can be caused by external factors such as intake of alcohol, medication or drugs, infectious diseases during pregnancy, or problems that develop during labour. Such factors cause disorders in which the baby’s genetic information remains unchanged and which are therefore not ...
... Such congenital disorders can be caused by external factors such as intake of alcohol, medication or drugs, infectious diseases during pregnancy, or problems that develop during labour. Such factors cause disorders in which the baby’s genetic information remains unchanged and which are therefore not ...
Genetics & Heredity
... situation where an organism gets 2 genes that are not dominant over each other. Both genes are expressed. – Ex. Cross a red flower & a white flower & get a pink flower. – Sickle cell anemia – a genetic disease that curves red blood cells into a sickle shape. It is very painful & often deadly. It sho ...
... situation where an organism gets 2 genes that are not dominant over each other. Both genes are expressed. – Ex. Cross a red flower & a white flower & get a pink flower. – Sickle cell anemia – a genetic disease that curves red blood cells into a sickle shape. It is very painful & often deadly. It sho ...
mendel`s legacy
... 3. In meiosis I, the offspring cells are haploid but each cell contains two copies of the chromosome because the original cell copied its DNA before meiosis I. The offspring cells of meiosis II are also haploid, but each cell contains only one copy of the chromosome because, unlike meiosis I, the ce ...
... 3. In meiosis I, the offspring cells are haploid but each cell contains two copies of the chromosome because the original cell copied its DNA before meiosis I. The offspring cells of meiosis II are also haploid, but each cell contains only one copy of the chromosome because, unlike meiosis I, the ce ...
What is Biopsychology? Chapter 1
... Example 1: In the previous slide, both Sue and Bill show leftover-right preference, but Sue is homozygous and Bill is heterozygous for the trait. What preference will their children show? All will likely show left-over-right preference. ...
... Example 1: In the previous slide, both Sue and Bill show leftover-right preference, but Sue is homozygous and Bill is heterozygous for the trait. What preference will their children show? All will likely show left-over-right preference. ...
Warm-up - Foothill Technology High School
... • When genes are sex-linked, we include the X and Y as part of their genotype. For example, the allele for red eye is not “R” but is written as XR. How would you write the allele for white ...
... • When genes are sex-linked, we include the X and Y as part of their genotype. For example, the allele for red eye is not “R” but is written as XR. How would you write the allele for white ...
View PDF
... 1. What are the two major groups of cell types in the human body? _______________________________________________________________ 2. Where are gametes located? _______________________________________________________________ 3. How many chromosomes are in a typical human body cell? __________________ ...
... 1. What are the two major groups of cell types in the human body? _______________________________________________________________ 2. Where are gametes located? _______________________________________________________________ 3. How many chromosomes are in a typical human body cell? __________________ ...
Tic Tac Toe 1 - Northwest ISD Moodle
... colorblindness is X-linked and recessive ANSWER: Mother, because the son has to inherit their X chromosome from their mom and colorblindness is X-linked. 3. A typical gene has how many alleles? ANSWER: 2 4. Two identical alleles for the same trait are called? ANSWER: Homozygous 5. What are karyotype ...
... colorblindness is X-linked and recessive ANSWER: Mother, because the son has to inherit their X chromosome from their mom and colorblindness is X-linked. 3. A typical gene has how many alleles? ANSWER: 2 4. Two identical alleles for the same trait are called? ANSWER: Homozygous 5. What are karyotype ...
Chromosome Mutations
... There are two ways in which DNA can become mutated: Mutations can be inherited. Parent to child ...
... There are two ways in which DNA can become mutated: Mutations can be inherited. Parent to child ...
Beyond Mendel
... • When genes are sex-linked, we include the X and Y as part of their genotype. For example, the allele for red eye is not “R” but is written as XR. How would you write the allele for white ...
... • When genes are sex-linked, we include the X and Y as part of their genotype. For example, the allele for red eye is not “R” but is written as XR. How would you write the allele for white ...
IB Evolution Option D2
... Geographical or reproductive isolation of a part of the population would allow it to evolve in a different direction Possibly more rapidly than the main population If the isolated population is small, it might be very difficult to find fossils of the ...
... Geographical or reproductive isolation of a part of the population would allow it to evolve in a different direction Possibly more rapidly than the main population If the isolated population is small, it might be very difficult to find fossils of the ...
Chapter 24: The Origin of Species AP Biology I. Chapter 24
... generations from a sterile one c. alloloploids are fertile with each other but not with parental species-‐ a new species is formed 3. origin of new polyploidy species is common enough and rapid ...
... generations from a sterile one c. alloloploids are fertile with each other but not with parental species-‐ a new species is formed 3. origin of new polyploidy species is common enough and rapid ...
Name
... In animals and in some plants, one pair of chromosomes is different in the two sexes. For example, in humans there are 22 similar pairs of chromosomes (autosomes) and the 23rd pair may be different (sex chromosomes). The sex chromosomes are similar in females and both are referred to as the "X" chro ...
... In animals and in some plants, one pair of chromosomes is different in the two sexes. For example, in humans there are 22 similar pairs of chromosomes (autosomes) and the 23rd pair may be different (sex chromosomes). The sex chromosomes are similar in females and both are referred to as the "X" chro ...
Document
... • Genes are often like light switches that can be turned off and on. • Operon = occur in prokaryotes. (bacteria) different genes that work together to activate gene functions ...
... • Genes are often like light switches that can be turned off and on. • Operon = occur in prokaryotes. (bacteria) different genes that work together to activate gene functions ...
1 Chapter 14: Mendel and the Gene Idea Mendelian Genetics
... For example: a cross between a dihybrid heterozygote (YyRr) and a recessive homozygote (yyrr): - ½ will be parental types (YyRr, yyrr) - ½ of the offspring called recombinant types (Yyrr, yyRr) - This frequency of recombination is 50% the genes are not linked! Recombination of linked genes does oc ...
... For example: a cross between a dihybrid heterozygote (YyRr) and a recessive homozygote (yyrr): - ½ will be parental types (YyRr, yyrr) - ½ of the offspring called recombinant types (Yyrr, yyRr) - This frequency of recombination is 50% the genes are not linked! Recombination of linked genes does oc ...
Chapter 7 – Are You Only as Smart as Your Genes
... – Homozygous Recessive: two lowercase letters – Heterozygous: one capital, one lowercase letter • Phenotype (Physical traits) – Expression of alleles ...
... – Homozygous Recessive: two lowercase letters – Heterozygous: one capital, one lowercase letter • Phenotype (Physical traits) – Expression of alleles ...
Mendelian Genetics Test Review Sheet
... The ABO blood groups, discovered by Dr. Karl Landsteiner, are based on the presence or absence of specific _______________ on the surface of red blood cells. ...
... The ABO blood groups, discovered by Dr. Karl Landsteiner, are based on the presence or absence of specific _______________ on the surface of red blood cells. ...
Species and speciation
... Species and speciation What is a species? Species = Latin for “kind” or “appearance” Linnaeus described species in terms of their morphology Modern taxonomists also consider genetic makeup and functional and behavioral differences when describing species The biological species concept (BSC) em ...
... Species and speciation What is a species? Species = Latin for “kind” or “appearance” Linnaeus described species in terms of their morphology Modern taxonomists also consider genetic makeup and functional and behavioral differences when describing species The biological species concept (BSC) em ...
BIO II: Mendelian/Human Genetics Test Review Sheet A couple who
... The ABO blood groups, discovered by Dr. Karl Landsteiner, are based on the presence or absence of specific _______________ on the surface of red blood cells. ...
... The ABO blood groups, discovered by Dr. Karl Landsteiner, are based on the presence or absence of specific _______________ on the surface of red blood cells. ...
Slide 1
... – genes - segments of hereditary material that are positions on chromosomes – chromosomes - structures that carry genes and are in the nuclei of every cell of an organism – most vertebrates are diploid - have 2 sets of chromosomes that are paired; get one copy from mother and one from father; each c ...
... – genes - segments of hereditary material that are positions on chromosomes – chromosomes - structures that carry genes and are in the nuclei of every cell of an organism – most vertebrates are diploid - have 2 sets of chromosomes that are paired; get one copy from mother and one from father; each c ...
Lab_36 - PCC - Portland Community College
... Why Marrying Your Cousin is Bad!!! • Inbreeding causes recessive alleles to become homozygous more often. • If the recessive allele contains a genetic disease, it will show up in these children at a higher rate than in the normal population. • Examples: • Tay-Sachs disease occurs primarily among Je ...
... Why Marrying Your Cousin is Bad!!! • Inbreeding causes recessive alleles to become homozygous more often. • If the recessive allele contains a genetic disease, it will show up in these children at a higher rate than in the normal population. • Examples: • Tay-Sachs disease occurs primarily among Je ...
Lab_36_old - PCC - Portland Community College
... Why Marrying Your Cousin is Bad!!! • Inbreeding causes recessive alleles to become homozygous more often. • If the recessive allele contains a genetic disease, it will show up in these children at a higher rate than in the normal population. • Examples: • Tay-Sachs disease occurs primarily among Je ...
... Why Marrying Your Cousin is Bad!!! • Inbreeding causes recessive alleles to become homozygous more often. • If the recessive allele contains a genetic disease, it will show up in these children at a higher rate than in the normal population. • Examples: • Tay-Sachs disease occurs primarily among Je ...
chromosomes - Life Science Academy
... It’s all in the name… • Start as chromatin • Duplicate • Thicken and clump into chromosomes • Consist of two sister chromatids- replicates • In meiosis… • Chromosomes (sister chromatid duplicates) find their ...
... It’s all in the name… • Start as chromatin • Duplicate • Thicken and clump into chromosomes • Consist of two sister chromatids- replicates • In meiosis… • Chromosomes (sister chromatid duplicates) find their ...
Polyploid
Polyploid cells and organisms are those containing more than two paired (homologous) sets of chromosomes. Most species whose cells have nuclei (Eukaryotes) are diploid, meaning they have two sets of chromosomes—one set inherited from each parent. However, polyploidy is found in some organisms and is especially common in plants. In addition, polyploidy occurs in some tissues of animals that are otherwise diploid, such as human muscle tissues. This is known as endopolyploidy. Species whose cells do not have nuclei, that is, Prokaryotes, may be polyploid organisms, as seen in the large bacterium Epulopicium fishelsoni [1]. Hence ploidy is defined with respect to a cell. Most eukaryotes have diploid somatic cells, but produce haploid gametes (eggs and sperm) by meiosis. A monoploid has only one set of chromosomes, and the term is usually only applied to cells or organisms that are normally diploid. Male bees and other Hymenoptera, for example, are monoploid. Unlike animals, plants and multicellular algae have life cycles with two alternating multicellular generations. The gametophyte generation is haploid, and produces gametes by mitosis, the sporophyte generation is diploid and produces spores by meiosis.Polyploidy refers to a numerical change in a whole set of chromosomes. Organisms in which a particular chromosome, or chromosome segment, is under- or overrepresented are said to be aneuploid (from the Greek words meaning ""not"", ""good"", and ""fold""). Therefore the distinction between aneuploidy and polyploidy is that aneuploidy refers to a numerical change in part of the chromosome set, whereas polyploidy refers to a numerical change in the whole set of chromosomes.Polyploidy may occur due to abnormal cell division, either during mitosis, or commonly during metaphase I in meiosis.Polyploidy occurs in some animals, such as goldfish, salmon, and salamanders, but is especially common among ferns and flowering plants (see Hibiscus rosa-sinensis), including both wild and cultivated species. Wheat, for example, after millennia of hybridization and modification by humans, has strains that are diploid (two sets of chromosomes), tetraploid (four sets of chromosomes) with the common name of durum or macaroni wheat, and hexaploid (six sets of chromosomes) with the common name of bread wheat. Many agriculturally important plants of the genus Brassica are also tetraploids.Polyploidy can be induced in plants and cell cultures by some chemicals: the best known is colchicine, which can result in chromosome doubling, though its use may have other less obvious consequences as well. Oryzalin will also double the existing chromosome content.