Biology Name: Directions: Read Section 13.3(pgs. 372
... A. a piece of a chromosome breaks off and reattaches to another chromosome. B. an organism has an extra set of chromosomes. C. a mutagen speeds the mutation rate. D. an insect develops a resistance to a pesticide. 19. A gene that codes for one of the polypeptide chains of the blood protein hemoglobi ...
... A. a piece of a chromosome breaks off and reattaches to another chromosome. B. an organism has an extra set of chromosomes. C. a mutagen speeds the mutation rate. D. an insect develops a resistance to a pesticide. 19. A gene that codes for one of the polypeptide chains of the blood protein hemoglobi ...
Complex Patterns of inheritance
... 3. Predict the possible offspring of a colorblind male and a normal female. 4. Predict the possible offspring of a mom with blood type IAi and a dad with Ibi. 5. What is a possible explanation for a ...
... 3. Predict the possible offspring of a colorblind male and a normal female. 4. Predict the possible offspring of a mom with blood type IAi and a dad with Ibi. 5. What is a possible explanation for a ...
Chapter 14 Section 14_2 Human Genetic Disorders
... • The protein produced by the CF allele helps block the entry of the ...
... • The protein produced by the CF allele helps block the entry of the ...
File
... a section of DNA sequence encoding a single protein • Genome – the entire set of genes in an organism • Alleles – two genes that occupy the same position on homologous chromosomes and that cover the same trait (like ‘flavors’ of a trait). • Locus – a fixed location on a strand of DNA where a gene or ...
... a section of DNA sequence encoding a single protein • Genome – the entire set of genes in an organism • Alleles – two genes that occupy the same position on homologous chromosomes and that cover the same trait (like ‘flavors’ of a trait). • Locus – a fixed location on a strand of DNA where a gene or ...
S90 Topic 5 DNA, genes and the genetic code, meiosis and mitosis
... • The DNA molecule is like a coiled ladder. • The sides of the ladder = alternating subunits of sugar and phosphates. • The rungs are pairs of NITROGEN BASES. There are 4 nitrogen bases: adenine (A), thymine (T), guanine (G) and cytosine (C). • The shape of A only fits (bonds) with T The shape of G ...
... • The DNA molecule is like a coiled ladder. • The sides of the ladder = alternating subunits of sugar and phosphates. • The rungs are pairs of NITROGEN BASES. There are 4 nitrogen bases: adenine (A), thymine (T), guanine (G) and cytosine (C). • The shape of A only fits (bonds) with T The shape of G ...
7.1 Chromosomes and Phenotype
... • Female mammals have an XX genotype. – Expression of sex-linked genes is similar to autosomal genes in females. – X chromosome inactivation randomly “turns off” one X chromosome. ...
... • Female mammals have an XX genotype. – Expression of sex-linked genes is similar to autosomal genes in females. – X chromosome inactivation randomly “turns off” one X chromosome. ...
DNA Function: Information Transmission
... ● bacterial mRNA molecules are typically degraded by enzymes ● eukaryotic mRNAs are typically ...
... ● bacterial mRNA molecules are typically degraded by enzymes ● eukaryotic mRNAs are typically ...
Cells
... A chromosome is composed of a DNA molecule and associated proteins. During normal cell functions, chromosomes exist as single-stranded structures. During cell division, chromosomes consist of two strands of DNA joined at the centromere. Since the DNA molecules have replicated, one strand of a chromo ...
... A chromosome is composed of a DNA molecule and associated proteins. During normal cell functions, chromosomes exist as single-stranded structures. During cell division, chromosomes consist of two strands of DNA joined at the centromere. Since the DNA molecules have replicated, one strand of a chromo ...
Mutations
... single human skin cell is CATGGC. If this sequence replicates in this cell and becomes GATGGC, this alteration will most likely be passed to › (1) every cell that develops from it ...
... single human skin cell is CATGGC. If this sequence replicates in this cell and becomes GATGGC, this alteration will most likely be passed to › (1) every cell that develops from it ...
PDF
... cases, in relation to their phenotype, is still under discussion. Some authors hypothesized that preferential inactivation of XSRY is related with undermasculinization [12]. However, other reports did not confirm this relationship [13]. The studied cat showed a random inactivation pattern and pronou ...
... cases, in relation to their phenotype, is still under discussion. Some authors hypothesized that preferential inactivation of XSRY is related with undermasculinization [12]. However, other reports did not confirm this relationship [13]. The studied cat showed a random inactivation pattern and pronou ...
Chapter 12 sec. 12.1 Sex Linked Traits
... • A person with normal color vision sees a number seven in the circle above. • Those who are color blind usually do not see any number at all. ...
... • A person with normal color vision sees a number seven in the circle above. • Those who are color blind usually do not see any number at all. ...
Sex chromosomes
... alleles (one from mom and one from dad) although, more than 2 alleles may exist within the population. ...
... alleles (one from mom and one from dad) although, more than 2 alleles may exist within the population. ...
Mendel`s Laws of Segregation
... 3. “If the two alleles differ, then one, the dominant allele, is fully expressed in the organism's appearance; the other, the recessive allele, has no noticeable effect on the organism's appearance.” ...
... 3. “If the two alleles differ, then one, the dominant allele, is fully expressed in the organism's appearance; the other, the recessive allele, has no noticeable effect on the organism's appearance.” ...
In meiosis, what is the difference between metaphase 1 and
... Both boys will have the x-linked recessive disorder (100% of time will be YXr) and none of the girls will have it but will be carriers (100% of time will be XRXr). 17. What are the nucleic acids that are found in DNA? What about RNA? ...
... Both boys will have the x-linked recessive disorder (100% of time will be YXr) and none of the girls will have it but will be carriers (100% of time will be XRXr). 17. What are the nucleic acids that are found in DNA? What about RNA? ...
MUTATIONS - MsWalshMosher
... What Causes Mutations? There are two ways in which DNA can become mutated: Mutations can be inherited. Parent to child ...
... What Causes Mutations? There are two ways in which DNA can become mutated: Mutations can be inherited. Parent to child ...
WINK Meiosis and Genetics
... Theme: Sex cells are formed by a process of cell division in which the number of chromosomes per cell is halved after replication. With the exception of sex chromosomes, for each chromosome in the body cells of a multicellular organism, there is a second similar, but not identical, chromosome. Altho ...
... Theme: Sex cells are formed by a process of cell division in which the number of chromosomes per cell is halved after replication. With the exception of sex chromosomes, for each chromosome in the body cells of a multicellular organism, there is a second similar, but not identical, chromosome. Altho ...
C. Would you expect cells treated with methotrexate to produce
... survive. What factor determines the extent of the defect caused by a particular chromosomal abnormality (i.e., why are humans with trisomy 21 sometimes able to survive, while individuals with trisomy 1 are not)? Why is this factor so important? +1.5; The extent of the defect caused by a particular c ...
... survive. What factor determines the extent of the defect caused by a particular chromosomal abnormality (i.e., why are humans with trisomy 21 sometimes able to survive, while individuals with trisomy 1 are not)? Why is this factor so important? +1.5; The extent of the defect caused by a particular c ...
The Genetics of Bacteria and Their Viruses
... jump from one position to another or from one DNA molecule to another • Bacteria contain a wide variety of transposable elements (as do all other organisms studied to date) • The smallest and simplest are insertion sequences, or IS elements, which are 1–3 kb in length and encode the transposase prot ...
... jump from one position to another or from one DNA molecule to another • Bacteria contain a wide variety of transposable elements (as do all other organisms studied to date) • The smallest and simplest are insertion sequences, or IS elements, which are 1–3 kb in length and encode the transposase prot ...
HUMAN GENETICS ARCHITECTURE LEARNING OBJECTIVES At
... This often means that one of the parents must also have the same trait, unless it has arisen due to a new mutation. Examples of autosomal dominant traits and disorders are Huntington's disease, and ...
... This often means that one of the parents must also have the same trait, unless it has arisen due to a new mutation. Examples of autosomal dominant traits and disorders are Huntington's disease, and ...
Sex-Related Topics
... Instead, they use the ratio of X’s to sets of autosomes. • 1 X plus 2 sets of autosomes is a normal diploid male. • 2 X’s plus 2 sets of autosomes is a diploid female. • The difference between sex determination mechanisms comes in the odd cases: --an XXY individual has a Y, so is a male mammal. Howe ...
... Instead, they use the ratio of X’s to sets of autosomes. • 1 X plus 2 sets of autosomes is a normal diploid male. • 2 X’s plus 2 sets of autosomes is a diploid female. • The difference between sex determination mechanisms comes in the odd cases: --an XXY individual has a Y, so is a male mammal. Howe ...
MENDELIAN GENETICS
... pairs. (23 single chromosomes for humans) Diploid ≡ having the complete pairs of chromosomes (23 pairs of chromosomes for humans) ...
... pairs. (23 single chromosomes for humans) Diploid ≡ having the complete pairs of chromosomes (23 pairs of chromosomes for humans) ...
Bacterial recombination
... and transfers genes from the first bacterium Homologous recombination occurs ...
... and transfers genes from the first bacterium Homologous recombination occurs ...
1 What makes a family? Cells, Genes, Chromosomes and Traits
... All living things – people, plants, and animals – are made of cells (say: sels). Our bodies are made of cells. All people or humans have 100 trillion (100,000,000,000,000) cells. All humans have about 200 types of cells. ...
... All living things – people, plants, and animals – are made of cells (say: sels). Our bodies are made of cells. All people or humans have 100 trillion (100,000,000,000,000) cells. All humans have about 200 types of cells. ...
X-inactivation
X-inactivation (also called lyonization) is a process by which one of the two copies of the X chromosome present in female mammals is inactivated. The inactive X chromosome is silenced by its being packaged in such a way that it has a transcriptionally inactive structure called heterochromatin. As nearly all female mammals have two X chromosomes, X-inactivation prevents them from having twice as many X chromosome gene products as males, who only possess a single copy of the X chromosome (see dosage compensation). The choice of which X chromosome will be inactivated is random in placental mammals such as humans, but once an X chromosome is inactivated it will remain inactive throughout the lifetime of the cell and its descendants in the organism. Unlike the random X-inactivation in placental mammals, inactivation in marsupials applies exclusively to the paternally derived X chromosome.