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Second Semester Final Exam Study Guide: Students will be
Second Semester Final Exam Study Guide: Students will be

... 24. Transcribe and translate a DNA sequence or mRNA sequence (translation table provided) 25. Compare/contrast DNA replication with transcription 26. Explain gene regulation and how it relates to cell specialization 27. Explain how hox genes affect animal development 28. Explain karyotypes (normal c ...
bill nye- genes video quiz
bill nye- genes video quiz

... 3. _____________________________ are very, very long DNA molecules found in almost every cell of every living thing. 4. Genes are like a ________________________ for making human beings. 5. Genes are a set of chemical ____________________________ which get passed down from parents to child. 6. Human ...
bill nye- genes video quiz
bill nye- genes video quiz

... 3. _____________________________ are very, very long DNA molecules found in almost every cell of every living thing. 4. Genes are like a ________________________ for making human beings. 5. Genes are a set of chemical ____________________________ which get passed down from parents to child. 6. Human ...
Karyotype SingleGeneInheritance
Karyotype SingleGeneInheritance

... A few trisomies will result in viable offspring. However, these individuals exhibit severe genetic disorders. Even within a chromosome, alternate versions of a trait may be coded for by the genetic content. Each trait is coded by the two distinct forms (alleles), one from each parent. Genetic condit ...
Genetic variation
Genetic variation

... Multiple alleles – characteristic for which there are 3 or more alleles in the populations gene pool Sex-linked – genes present on one of the sex chromosomes Autosomal linkage – gene loci present on the same autosome (non sex chromosome) that are often inherited together Epistasis – interaction of n ...
Module B1a, topic 1 Food chains eg grass → rabbit → fox producer
Module B1a, topic 1 Food chains eg grass → rabbit → fox producer

... James Watson and Francis Crick used x-ray diffraction data collected by Rosalind Franklin to work out the double helix structure of DNA in 1953. The Human Genome Project ( from 1990 James Watson ) finally mapped the 20000 genes of the human genome. Sexual reproduction ( involves fertilisation of an ...
chapt16_lecture_edited [Compatibility Mode]
chapt16_lecture_edited [Compatibility Mode]

...  In other cases, the heterozygote may make more than 50% of the normal amount of protein – up-regulated ...
Unit 5 vocab
Unit 5 vocab

Ch12b_Heredity
Ch12b_Heredity

... Nondisjunction of the sex chromosomes is more often survivable than nondisjunctions of somatic chromosomes. As long as the fetus has at least one X chromosome, it can survive. ...
Slide 1 - Ommbid.com
Slide 1 - Ommbid.com

Lecture 7
Lecture 7

... Controls had to be done to make sure that a cellular gene and not a viral gene was isolated. At this time, the only oncogenes known were from viruses. When the isolated ras oncogene sequence and the normal ras protooncogene sequence were compared a single base pair change was found in the DNA that a ...
Genetics Teacher Notes
Genetics Teacher Notes

... Presence of heterozygote means both alleles are expressed equally ...
01 - wcusd15
01 - wcusd15

... 9. Identifying Relationships Put the following in order of smallest to largest: chromosome, gene, and cell. _______________________________________________________________ _______________________________________________________________ 10. Applying Concepts A pea plant has purple flowers. What allel ...
Gregor Mendel - BHMS
Gregor Mendel - BHMS

...  Cytokinesis 2 – both cells divide to form a total of _______ cells Sex Chromosomes  Sex chromosomes carry _______ that determines sex - male and female  In humans, females have ______ _____ chromosomes, males have ____ ______ and ______ ______ chromosome  During ___________ meiosis each ______ ...
Study Questions – Chapter 1
Study Questions – Chapter 1

... was mapped, it took less than a year to find the gene. What had changed that made such a big difference in the timelines of these two projects? 16. What information can help evaluate the list of potential candidate genes located in the region to which a gene has been mapped? 17. How can an animal mo ...
Genetic constitution of a population
Genetic constitution of a population

... number of chromosomes according to the species The zygote then starts the process of mitosis throughout its life ...
DNA Discovery
DNA Discovery

... • Females have two copies of the X chromosome however the amount of proteins in males and females is equal. – What happens is that one of the X chromosomes is inactivated randomly, it is referred to as a Barr body. It is important to remember that different X chromosomes are inactivated in different ...
Slide 1
Slide 1

... • Could be in charge of making a protein (like the gene for the molecule keratin has its nucleotides in an order such that the amino acid sequence that is made from those directions will make keratin) • Could be a ‘regulatory’ gene – like a foreman in a factory who produces nothing directly, but who ...
File
File

... the original chromosomes of both parents Takes place during Meiosis Two chromosomes intertwine and exchange one end of the chromosome with the other ...
Chapter 7 Note taking Form
Chapter 7 Note taking Form

... Mendel’s rules of inheritance apply to autosomal genetic ________________________.  An organism's ___________________________ represents the two alleles inherited for a given trait such as CC or cc. For an organism to be a ____________________, the genotype must include one copy of a recessive alle ...
Congenital_and_Hereditary_Diseases_9
Congenital_and_Hereditary_Diseases_9

... chromosomes, one allele may be more influential than the other in determining a specific trait • The more powerful or dominant gene is more likely to be expressed than the recessive gene ...
Dominant-Recessive Inheritance
Dominant-Recessive Inheritance

... • Example: probability of genotypes from mating two heterozygous parents • Dominant allele—capital letter; recessive allele—lowercase letter • T = tongue roller and t = cannot roll tongue • TT and tt are homozygous; Tt is heterozygous ...
Document
Document

... Organism with one complete set of chromosomes is said to be euploid (applies to haploid and diploid organisms). Aneuploidy = variation in the number of individual chromosomes (but not the total number of sets of chromosomes). Nondisjunction during meiosis I or II (Chapter 12)  aneuploidy. ...
M&M Review
M&M Review

... • 4 Haploid (1N) cells – 1 set of chromosomes • Called a Reduction division (2N to 1N) ...
The modern synthesis
The modern synthesis

... One of the key assumptions of the theory of natural selection. How does that work? Genes! ...
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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.
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