powerpoint human disorders - Social Circle City Schools
... known. A colorblind male has to be b, since he only has one allele and colorblindness is recessive. A normal male must then be B Females can be heterozygous for the colorblindness trait - they are called carriers. A female can be BB normal, Bb - carrier, or bb - colorblind ...
... known. A colorblind male has to be b, since he only has one allele and colorblindness is recessive. A normal male must then be B Females can be heterozygous for the colorblindness trait - they are called carriers. A female can be BB normal, Bb - carrier, or bb - colorblind ...
Karyotype, mitosis and meiosis
... Second meiotic division completed after fertilisation in fallopian tube, resulting in mature ovum and 2nd polar body. Oogenesis produces only one ovum. Long resting phase during the 1st meiotic division may be factor in increased risk of homologous chromosomes separation failure during meiosis ( ...
... Second meiotic division completed after fertilisation in fallopian tube, resulting in mature ovum and 2nd polar body. Oogenesis produces only one ovum. Long resting phase during the 1st meiotic division may be factor in increased risk of homologous chromosomes separation failure during meiosis ( ...
In n-queens…
... selected and replaced with each other. Increasing the number of mutations increases the algorithm’s freedom to search outside the current region of chromosome space . ...
... selected and replaced with each other. Increasing the number of mutations increases the algorithm’s freedom to search outside the current region of chromosome space . ...
A1988L264200002
... appropriate place to begin such work because my With the passage of time it has become clear that department chairman was Susumu Ohno, who was both of our papers, which emphasized different well known as a discoverer of X.chromosome inac- aspects of DNA modification, have had considerable tivation. ...
... appropriate place to begin such work because my With the passage of time it has become clear that department chairman was Susumu Ohno, who was both of our papers, which emphasized different well known as a discoverer of X.chromosome inac- aspects of DNA modification, have had considerable tivation. ...
File chapter 3 vocab pp
... They are genetically no closer than brothers and sisters, but they share a fetal environment. ...
... They are genetically no closer than brothers and sisters, but they share a fetal environment. ...
Mutations I
... Compare these two windflowers (genus Anemone) and their karyotypes—the one on the right is double the one on the left ...
... Compare these two windflowers (genus Anemone) and their karyotypes—the one on the right is double the one on the left ...
Document
... Homologous autosomes are identical in length, size, shape, and gene sequence Sex chromosomes are nonidentical but still homologous Homologous chromosomes interact, then segregate from one another during meiosis ...
... Homologous autosomes are identical in length, size, shape, and gene sequence Sex chromosomes are nonidentical but still homologous Homologous chromosomes interact, then segregate from one another during meiosis ...
The Phases of Meiosis Interphase: Prophase 1: Metaphase 1
... -homologous chromosomes come together matched gene by gene forming a tetrad -Crossing Over may occur when chromatids exchange genetic material -this occurs two or three times per pair of homologous chromosomes -Crossing Over results in new combinations of alleles on a chromosomes ...
... -homologous chromosomes come together matched gene by gene forming a tetrad -Crossing Over may occur when chromatids exchange genetic material -this occurs two or three times per pair of homologous chromosomes -Crossing Over results in new combinations of alleles on a chromosomes ...
5-Sex linked - Science-with
... • recessive lethal X-linked disorders also occurs more frequently in males. • example: infantile spinal muscular atrophy ...
... • recessive lethal X-linked disorders also occurs more frequently in males. • example: infantile spinal muscular atrophy ...
Document
... Two copies of each autosomal gene affect phenotype (physical). • Mendel studied autosomal gene traits, like hair texture. Autosome – chromosome with genes not related to sex of organism (body cells) ...
... Two copies of each autosomal gene affect phenotype (physical). • Mendel studied autosomal gene traits, like hair texture. Autosome – chromosome with genes not related to sex of organism (body cells) ...
mutations ppt
... • 3. Substitutions: a base is changed (one is substituted for another) • AGGCAA • AGCCAA • A substitution may not cause any change in the amino acid ...
... • 3. Substitutions: a base is changed (one is substituted for another) • AGGCAA • AGCCAA • A substitution may not cause any change in the amino acid ...
The Chromosomal Basis of Inheritance
... • Linked Genes—genes that are on the same chromosome. • Genes on a chromosome tend to be inherited together because chromosomes are inherited as a unit. • See test cross on pg. 273 ...
... • Linked Genes—genes that are on the same chromosome. • Genes on a chromosome tend to be inherited together because chromosomes are inherited as a unit. • See test cross on pg. 273 ...
Exam Name___________________________________
... hereditary patterns seen in humans. Three phenotypic characters are height (T = tall, t = dwarf), head appendages (A = antennae, a = no antennae), and nose morphology (S = upturned snout, s = downturned snout). Since the creatures are not “intelligent,” Earth scientists are able to do some controlle ...
... hereditary patterns seen in humans. Three phenotypic characters are height (T = tall, t = dwarf), head appendages (A = antennae, a = no antennae), and nose morphology (S = upturned snout, s = downturned snout). Since the creatures are not “intelligent,” Earth scientists are able to do some controlle ...
Chapter 24
... either homozygote. In other words, neither of the alleles of the gene is completely dominant over any other allele. This can be seen in sickle cell disease. In codominance, the different alleles are both expressed. This can be seen in ABO blood types. The most drastic upset in chromosome number is a ...
... either homozygote. In other words, neither of the alleles of the gene is completely dominant over any other allele. This can be seen in sickle cell disease. In codominance, the different alleles are both expressed. This can be seen in ABO blood types. The most drastic upset in chromosome number is a ...
Homework: Mutations
... D a part of a chromosome was lost (deletion) 8. Which of the following is a change that could be passed on to an organism’s offspring? A Damage to the DNA of gamete cells B Damage to skin cells from exposure to sunlight C Damage to DNA in the cytoplasm of cheek cells D Damage to hair pigment cells w ...
... D a part of a chromosome was lost (deletion) 8. Which of the following is a change that could be passed on to an organism’s offspring? A Damage to the DNA of gamete cells B Damage to skin cells from exposure to sunlight C Damage to DNA in the cytoplasm of cheek cells D Damage to hair pigment cells w ...
الصفات المرتبطة بالجنس تورث للأبناء الذكور من الأم فقط لأنهم
... results from a specific deletion in chromosome 5. -- Is a rare genetic disorder due to a missing part of chromosome 5 – These individuals are mentally retarded, have a small head with unusual facial features, and a cry like the mewing of a distressed cat. – This syndrome is fatal in infancy الطفوي ...
... results from a specific deletion in chromosome 5. -- Is a rare genetic disorder due to a missing part of chromosome 5 – These individuals are mentally retarded, have a small head with unusual facial features, and a cry like the mewing of a distressed cat. – This syndrome is fatal in infancy الطفوي ...
5.3 Cell and Inheritance
... Key concept: During meiosis, the chromosome pairs separate and are distributed to two different cells. The resulting sex cells have only half as many chromosomes as the other cells in the organism. Each sex cell has two chromosomes, one from each original pair ...
... Key concept: During meiosis, the chromosome pairs separate and are distributed to two different cells. The resulting sex cells have only half as many chromosomes as the other cells in the organism. Each sex cell has two chromosomes, one from each original pair ...
Notes 4-4
... Engage – Discover Activity – Page 131 Objectives: 1. Explain what forms the genetic code. 2. Describe how a cell produces proteins. 3. Identify how mutations can affect an organism. 4-4 The DNA Connection A. The Genetic Code 1. The main function of genes is to control the production of proteins in a ...
... Engage – Discover Activity – Page 131 Objectives: 1. Explain what forms the genetic code. 2. Describe how a cell produces proteins. 3. Identify how mutations can affect an organism. 4-4 The DNA Connection A. The Genetic Code 1. The main function of genes is to control the production of proteins in a ...
Chromosomes, DNA, and Genes
... Down syndrome (trisomy 21: 47,XX,+21) Edwards syndrome (trisomy 18: 47,XX,+18) Patau syndrome (trisomy 13: 47,XX+13) Sex chromosomes Turner syndrome 45,X Klinefelter syndrome 47,XXY ...
... Down syndrome (trisomy 21: 47,XX,+21) Edwards syndrome (trisomy 18: 47,XX,+18) Patau syndrome (trisomy 13: 47,XX+13) Sex chromosomes Turner syndrome 45,X Klinefelter syndrome 47,XXY ...
GENETICS TEST #3 OBJECTIVES: SB2. Students will analyze how
... 20. The failure of chromosomes to separate correctly during meiosis is ___________________. 21. When a piece of one chromosome combines with a different chromosome, a ___________________ mutation occurs. 22. ___________________ is when a section of chromosome breaks off, changes direction, and recom ...
... 20. The failure of chromosomes to separate correctly during meiosis is ___________________. 21. When a piece of one chromosome combines with a different chromosome, a ___________________ mutation occurs. 22. ___________________ is when a section of chromosome breaks off, changes direction, and recom ...
Genetics and Related Disorders Powerpoint
... – A. One diploid cell becomes two haploid cells. – B. One haploid cell becomes two diploid cells. – C. One diploid cell becomes four haploid cells. – D. One haploid cell becomes four diploid cells. ...
... – A. One diploid cell becomes two haploid cells. – B. One haploid cell becomes two diploid cells. – C. One diploid cell becomes four haploid cells. – D. One haploid cell becomes four diploid cells. ...
MENDEL & Variations of Mendel
... and fertilization. • Under normal Mendelian genetic rules, we would not expect linked genes to recombine into assortments of alleles not found in the parents. – If the seed color and seed coat genes were linked, we would expect the F1 offspring to produce only two types of gametes, YR and yr when th ...
... and fertilization. • Under normal Mendelian genetic rules, we would not expect linked genes to recombine into assortments of alleles not found in the parents. – If the seed color and seed coat genes were linked, we would expect the F1 offspring to produce only two types of gametes, YR and yr when th ...
Mutation - World of Teaching
... Non-disjunction during meiosis • Spindle fibre fails during meiosis • Members of one pair of homologous chromosomes fail to become separated • 2 gametes receive extra copy of affected chromosome • 2 gametes lack that chromosome ...
... Non-disjunction during meiosis • Spindle fibre fails during meiosis • Members of one pair of homologous chromosomes fail to become separated • 2 gametes receive extra copy of affected chromosome • 2 gametes lack that chromosome ...
Biology 325: Genetics
... Prokaryotic Gene Regulation: To enable bacteria to respond to their environments, transcription initiation is turned on and off mainly by trans-acting proteins; gene expression is also regulated after initiation by cis- or transacting RNAs, or trans-acting proteins. Eukaryotic Gene Regulation: Multi ...
... Prokaryotic Gene Regulation: To enable bacteria to respond to their environments, transcription initiation is turned on and off mainly by trans-acting proteins; gene expression is also regulated after initiation by cis- or transacting RNAs, or trans-acting proteins. Eukaryotic Gene Regulation: Multi ...
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.