
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN: 9780134580999
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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Transcribed Image Text:Mendel's laws of segregation and independent assortment are based on the movement of chromosomes during meiosis, even though Mendel did not know about
chromosomes during his lifetime. Can you match each of the following events with the law it illustrates?
Sort each event to the appropriate bin. If an event doesn't illustrate either law, drag it to the neither bin.
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Transcribed Image Text:During meiosis, alleles of genes on
one homologous pair of chromosomes
sort into gametes without regard for
how alleles on other homologous pairs
sort into gametes.
Law of segregation
A diploid organism with the genotype
Gg will produce gametes that are 11/11 G
and
g.
A diploid organism with the genotype
GgHh will produce gametes that are
GH. Gh.gH, and gh.
During meiosis, a diploid organism's
homologous chromosomes separate
into haploid gametes.
During meiosis, the two alleles of one
gene separate into different gametes.
Law of independent assortment
In preparation for meiosis, the cell
duplicates each of its chromosomes.
During metaphase I, homologous
pairs of chromosomes line up at the
metaphase plate in varying
arrangements by chance.
Neither
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- In Anaphase 1 homologous chromosomes are separated from each other resulting in intermediate cells that have either the maternal or paternal copy of any given chromosome. This illustrates the mendelian law of: Question 9 options: Reduction of chromosomes Crossing over during synapse Segregation Independent Assortmentarrow_forwardDraw two replicated, condensed, homologous chromosomes that have the genes E and F on them. This individual is heterozygous for gene E, and homozygous recessive for gene F. Be sure to label your chromosomes for full credit.arrow_forwardA gene has 3 alleles. How many different genotypes are possible in this locus in a diploid organism?arrow_forward
- Joseph is heterozygous for the traits F (dominant to f) and B (dominant to b)and his genes are in cis, and these locuses are on the same chromosome and separated by 30 map units. Sara is also heterozygous for these traits but here genes are in trans. Calculate how likely it would be to observe an individual who is homozygous dominant for the genes F and B. Be sure to show your work for full credit.arrow_forwardWhen does Mendel’s first law occur of equal segregation occur? Does it occur during mitosis, meiosis I, and/or meiosis II?arrow_forwardMendel crossed a true-breeding pea plant with green pods and a true breading pea plant with yellow pods. Assuming that green is the dominant color indicate the genotype of the parents and the phenotypic ratio of F2 generation.arrow_forward
- Mendelian Genetics The presence of a dimple on the cheek is governed by a dominant gene. A couple had already 4 children with dimpled cheeks. What would be the probability of having the next child as another dimpled if both parents are heterozygous for this character? Show your solution using Punnett Squarearrow_forwardWe have learned that Mendel's Law of Segregation is not really applicable to alleles found on sex chromosomes. But does it apply to the actual sex chromosomes? Explain.arrow_forwardIf the mother has normal color vision but her daughter has red-green colorblindness, what must be the genotype of the sex chromosomes of the two parents (with respect to red-green vision)arrow_forward
- Consider an animal with genotype F/f. The possible gametes produced by this individual may be ½ F and ½ f. Choose the correct answer below. The explanation for the possible gametes produced is Mendel’s first law, of equal segregation. The explanation for the possible gametes produced is Mendel’s second law, of independent assortment. The explanation for the possible gametes produced is BOTH Mendel’s first law, of equal segregation AND Mendel’s second law, of independent assortment. The explanation for the possible gametes produced is NEITHER Mendel’s first law, of equal segregation NOR Mendel’s second law, of independent assortment.arrow_forwardMendel’s observation that two different traits could be inherited independently of each other can be explained by understanding that: During meiosis, the process of chromosome assortment into daughter cells is random Alleles of the genes reside on homologous chromosomes All of the listed choices are correct During meiosis, maternal and paternal members of homologous chromosomes are distributed separately into daughter cellsarrow_forward
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