GENES AND CHROMOSOMES
... 2. gametes carry one allele or the other, but not both B. when two pairs of alternate alleles carried on two pairs of homologs 1. homologs separate during meiosis I 2. chromatids separate during meiosis II 3. alleles assort independently II. Linkage A. definition of linked genes: B. relation to Mend ...
... 2. gametes carry one allele or the other, but not both B. when two pairs of alternate alleles carried on two pairs of homologs 1. homologs separate during meiosis I 2. chromatids separate during meiosis II 3. alleles assort independently II. Linkage A. definition of linked genes: B. relation to Mend ...
Chapter 4 Genetics Review
... 2. What are the factors that control inheritance of traits? 3. What are alleles? 4. What is a dominant allele? 5. What kind of allele can be hidden when a dominant allele is present? 6. What kinds of alleles does a hybrid organism have? 7. What tool can be used to predict the results of a genetic cr ...
... 2. What are the factors that control inheritance of traits? 3. What are alleles? 4. What is a dominant allele? 5. What kind of allele can be hidden when a dominant allele is present? 6. What kinds of alleles does a hybrid organism have? 7. What tool can be used to predict the results of a genetic cr ...
chapter 15 - Scranton Prep Biology
... B. The phenotypic effects of some genesdependon whether they the mother or father c. Extranuclear genes exhibit a non-Mendelian pattern of inheritance ...
... B. The phenotypic effects of some genesdependon whether they the mother or father c. Extranuclear genes exhibit a non-Mendelian pattern of inheritance ...
Genetics Study Guide
... used pea plants for his studies. • Short growing period/Easy to Grow • 7 traits in 2 distinct forms • Produces many offspring ...
... used pea plants for his studies. • Short growing period/Easy to Grow • 7 traits in 2 distinct forms • Produces many offspring ...
Slide 1 - Port Fest Baltimore 2015
... • 5. Men with red-green color blindness inherited the genes for it from: a) their mothers b) their fathers c) either their mothers or ...
... • 5. Men with red-green color blindness inherited the genes for it from: a) their mothers b) their fathers c) either their mothers or ...
ANSWERS on Inheritance File
... ones get 1 mark only] Any two from: 1. meiosis produces haploid cells / half the chromosome produces cells with single chromosomes / n; 2. four cells produced by meiosis / double division; 3. gametes / cells from meiosis show variation / ORA; [Ignore reference to numbers of chromosomes] ...
... ones get 1 mark only] Any two from: 1. meiosis produces haploid cells / half the chromosome produces cells with single chromosomes / n; 2. four cells produced by meiosis / double division; 3. gametes / cells from meiosis show variation / ORA; [Ignore reference to numbers of chromosomes] ...
Document
... • Because some alleles are dominant over others, the genotype of an organism may not be apparent • Ex. A pea plant with purple flowers could be either PP or Pp • To determine which genotype the plant has, it can be crossed with a known genotype which is the homozygous recessive • The homozygous rece ...
... • Because some alleles are dominant over others, the genotype of an organism may not be apparent • Ex. A pea plant with purple flowers could be either PP or Pp • To determine which genotype the plant has, it can be crossed with a known genotype which is the homozygous recessive • The homozygous rece ...
x2-2 genetics F12
... Dominant, recessive, X-linked Abnormal number of chromosomes Missing or duplicated segments of chromosomes ...
... Dominant, recessive, X-linked Abnormal number of chromosomes Missing or duplicated segments of chromosomes ...
Theoretical genetics
... Certain colors cannot be distinguished, and is most commonly due to an inherited condition. Red/Green color blindness is by far the most common form, about 99%, and causes problems in distinguishing reds and greens. Another color deficiency Blue/Yellow also exists, but is rare and there is no comm ...
... Certain colors cannot be distinguished, and is most commonly due to an inherited condition. Red/Green color blindness is by far the most common form, about 99%, and causes problems in distinguishing reds and greens. Another color deficiency Blue/Yellow also exists, but is rare and there is no comm ...
Wanganui High School
... A mistake made in copying the DNA can produce a slightly different allele of a gene. Certain chemicals, ultra-violet light, Xrays, or radiation can cause changes to DNA even while chromosomes are not being copied. If the mutation happens in the gametes, the new allele can be passed on to offspring. ...
... A mistake made in copying the DNA can produce a slightly different allele of a gene. Certain chemicals, ultra-violet light, Xrays, or radiation can cause changes to DNA even while chromosomes are not being copied. If the mutation happens in the gametes, the new allele can be passed on to offspring. ...
Meiosis and Genetic Variation
... Meiosis and Genetic Variation • The possible number of chromosome combinations varies by species. – For example, fruit flies have only 4 chromosomes – or 16 possible chromosome combinations in a sex cell. • Since each egg and sperm has 16 possible chromosome combinations, the total number of possib ...
... Meiosis and Genetic Variation • The possible number of chromosome combinations varies by species. – For example, fruit flies have only 4 chromosomes – or 16 possible chromosome combinations in a sex cell. • Since each egg and sperm has 16 possible chromosome combinations, the total number of possib ...
Know Your Chromosomes - Indian Academy of Sciences
... in Table 1. Most organisms are 'diploid' meaning that they have two copies of each chromosome, one received from the father and the other from the mother. The sperm and the egg nuclei (which fuse during fertilization to form the zygote, that grows and develops into a complete organism) contain only ...
... in Table 1. Most organisms are 'diploid' meaning that they have two copies of each chromosome, one received from the father and the other from the mother. The sperm and the egg nuclei (which fuse during fertilization to form the zygote, that grows and develops into a complete organism) contain only ...
Karyotypes
... All living organisms store their genetic instruction manual in molecules of DNA. Although the specific sequence of bases may differ from species to species, the structure of DNA is consistent among all living organisms. The DNA is arranged in long molecules that are called chromosomes. Your chromoso ...
... All living organisms store their genetic instruction manual in molecules of DNA. Although the specific sequence of bases may differ from species to species, the structure of DNA is consistent among all living organisms. The DNA is arranged in long molecules that are called chromosomes. Your chromoso ...
Lecture#18 - Chromosome Rearrangements
... Note: Adjacent-1 and Alternate happen equally frequently therefore only 50% of the total number of products are viable. ...
... Note: Adjacent-1 and Alternate happen equally frequently therefore only 50% of the total number of products are viable. ...
GENETICS & HEREDITY - Utah Electronic High School
... GENETICS - The study of the way animals & plants pass on to their offspring such as: ...
... GENETICS - The study of the way animals & plants pass on to their offspring such as: ...
unit 6 reading guidE
... 59. Which does sexual reproduction create: new alleles or new combinations of alleles? _______________________________________________________________________________________ 60. How is the production of unique genetic combinations an advantage to organisms and species? _____________________________ ...
... 59. Which does sexual reproduction create: new alleles or new combinations of alleles? _______________________________________________________________________________________ 60. How is the production of unique genetic combinations an advantage to organisms and species? _____________________________ ...
Semester Exam Study Guide 2014 Scientific Method Unit 1: What
... All cells undergo a sequence of events from their ”birth“ to the end of the cell known as the 1)__________________________. Name each phase in order (largest cycle): 2)_______________________, _____________________________, _________________, and _________________________________. In which of the ph ...
... All cells undergo a sequence of events from their ”birth“ to the end of the cell known as the 1)__________________________. Name each phase in order (largest cycle): 2)_______________________, _____________________________, _________________, and _________________________________. In which of the ph ...
CST Review Sheet 2 DNA and RNA 1. The unit to the right which
... 9. In fruit flies, the gene for red eyes (R) is dominant and the gene for sepia eyes (r) is recessive. What are the possible combinations of genes in the offspring of two red-eyed heterozygous flies (Rr)? Do a punnett square for Rr x Rr A RR only B rr only C Rr and rr only D RR, Rr, and rr only 10. ...
... 9. In fruit flies, the gene for red eyes (R) is dominant and the gene for sepia eyes (r) is recessive. What are the possible combinations of genes in the offspring of two red-eyed heterozygous flies (Rr)? Do a punnett square for Rr x Rr A RR only B rr only C Rr and rr only D RR, Rr, and rr only 10. ...
X Linked Inheritance
... If someone in the family has an X linked condition or is a carrier, you may wish to discuss this with other family members. This gives other female family members the opportunity to have a blood test to see if they are also carriers, if they wish. This information may also be useful in helping diagn ...
... If someone in the family has an X linked condition or is a carrier, you may wish to discuss this with other family members. This gives other female family members the opportunity to have a blood test to see if they are also carriers, if they wish. This information may also be useful in helping diagn ...
7.1 Chromosomes and Phenotype
... Phenotype can depend on interactions of alleles. • In incomplete dominance, neither allele is completely dominant nor completely recessive. – Heterozygous phenotype is intermediate between the two homozygous phenotypes – Homozygous parental phenotypes not seen in F1 offspring (DON’T COPY) ...
... Phenotype can depend on interactions of alleles. • In incomplete dominance, neither allele is completely dominant nor completely recessive. – Heterozygous phenotype is intermediate between the two homozygous phenotypes – Homozygous parental phenotypes not seen in F1 offspring (DON’T COPY) ...
Refer to diagrams in your textbook and the good websites in Senior
... ♦ Meiosis is the process of cell division that forms the gametes (male sperm or pollen, and female ovum). One diploid cell (2n) in the male or female reproductive organs (testes and ovaries) produces 4 haploid/monoploid cells (1n). These 4 cells become the 4 sperm cells in males, or 1 egg and 3 pola ...
... ♦ Meiosis is the process of cell division that forms the gametes (male sperm or pollen, and female ovum). One diploid cell (2n) in the male or female reproductive organs (testes and ovaries) produces 4 haploid/monoploid cells (1n). These 4 cells become the 4 sperm cells in males, or 1 egg and 3 pola ...
Card Match
... A person who has the recessive allele for a characteristic or disease and can pass it on, but who does not have the characteristic or disease itself. ...
... A person who has the recessive allele for a characteristic or disease and can pass it on, but who does not have the characteristic or disease itself. ...
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.