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chapter 3: biological beginnings
chapter 3: biological beginnings

... Adaptive Behavior – That which promotes an organism’s survival in its habitat (e.g, eagle’s claws), attachment in humans. ...
Chapter 21: Genomes & Their Evolution 1. Sequencing & Analyzing Genomes
Chapter 21: Genomes & Their Evolution 1. Sequencing & Analyzing Genomes

... functions can arise by: 1) Duplication of existing gene followed by mutation producing distinct gene product • the 2 genes will share significant homology however may have very different functions (e.g., lysozyme and -lactalbumin) ...
Eukaryotic Gene Regulation
Eukaryotic Gene Regulation

... Genes are regulated in a variety of ways by enhancer sequences located before the point at which transcription begins. An enormous number of proteins can bind to different enhancer sequences, which is why eukaryotic gene regulation is so complex. Some of these DNA-binding proteins enhance transcript ...
B1 - Knockhardy
B1 - Knockhardy

... • human males have sex chromosomes XY • human females have sex chromosomes XX • sex of an embryo is determined by a gene on the Y chromosome • the gene governs the development of sex organs into ovaries/testes ...
Chap 12 VOCAB - local.brookings.k12.sd.us
Chap 12 VOCAB - local.brookings.k12.sd.us

... Nitrogen base with 1 ring such as cytosine and thymine pyrimidine ...
outline File - selu moodle
outline File - selu moodle

... Y chromosome only carries 330 genes X chromosome carries 2,062 genes Males and females express the same levels of certain genes found on the X chromosome Dosage compensation In females one X chromosome is randomly selected for modification 13.3 Exceptions to the Chromosomal Theory of Inheritance Mit ...
unit in review genetics - Hutchison
unit in review genetics - Hutchison

... -genes, traits, chromosomes, loci -the importance of sexual reproduction in increasing variability and genetic diversity -the difference between asexual reproduction and sexual reproduction -cloning plants and animals -recognize diagrams showing the stages of meiosis -how genetic variation increases ...
16.2 Biotechnology Products
16.2 Biotechnology Products

... 1. Stems or root send up new shoots that are clones of the parent plant. 2. Members of a bacterial colony on a petri dish are clones because they all came from division of the same cell. 3. Human identical twins are clones; the original single embryo separate to become two individuals. (Artificial T ...
Allele - Mr Waring`s Biology Blog
Allele - Mr Waring`s Biology Blog

... Dominant Allele The characteristics of an organism, often visible, resulting from both its genotype and the effects of its environment Phenotype A homozygous organism with two dominant alleles Homozygous Dominant A change to a phenotype not inherited by future generations Modification The abbreviat ...
Eukaryotic Gene Regulation
Eukaryotic Gene Regulation

... where transcription begins. ...
The Organization and Control of Eukaryotic Genomes
The Organization and Control of Eukaryotic Genomes

... tissues (seen in early insect development). ...
Bio background
Bio background

... Several types exist, classified by function  mRNA – this is what is usually being referred to when a Bioinformatician says “RNA”. This is used to carry a gene’s message out of the nucleus.  tRNA – transfers genetic information from mRNA to an amino acid sequence  rRNA – ribosomal RNA. Part of the ...
Name: : ______ Notes 11.3 – Other Patterns of Inheritance THINK
Name: : ______ Notes 11.3 – Other Patterns of Inheritance THINK

... MULTIPLE ALLELES 11. A gene with more than _______ alleles is said to have _____________ ___________. 12. Fill in the blanks….. ...
Section 7.1: Chromosomes & Phenotypes
Section 7.1: Chromosomes & Phenotypes

... because there is not always two copies of a gene. • Males, only have one chromosome that carries genes (X). • Therefore, for some disorders, a male only needs 1 copy of a gene. • This means males will show all recessive traits because there is no other allele to mask. • In females, their sex-linked ...
Biotechnology
Biotechnology

... Aimed to identify the entire sequence of bases in human DNA ...
PowerPoint
PowerPoint

... …also would be nice to be able to do tissueand/or developmental stage-specific regulation. ...
ThreeAimsIn3Days 50.5 KB - d
ThreeAimsIn3Days 50.5 KB - d

... Prokaryotes are less complex than eukaryotes. Model organisms: practical to study, short generation time, similar genome to humans. Mice are the best for humans. Comparative Genomics Terminology: -*Homologs: most closely related genes: see below. -Orthologs: same locus, common ancestor -Paralogs: ...
Lecture Exam IV - Napa Valley College
Lecture Exam IV - Napa Valley College

... (4 pts) A group of young scientists are breeding fruit flies and are looking at the genetics of two traits in the flies, the color of the fly and the size of the wings. Grey bodies are dominant over black and normal wings are dominant over vestigial wings. They bred black flies with vestigial wings ...
Lecture 11 - Lectures For UG-5
Lecture 11 - Lectures For UG-5

... • They are inherited as a group; that is, during cell division, they act and move as a unit rather than independently. • The existence of linkage groups is the reason some traits do not comply with Mendel’s law of independent assortment, i.e., the principle applies only if the genes are located on d ...
Introduction To Genetics
Introduction To Genetics

... 5. Alleles can be heterozygous- having different traits. ...
flyer
flyer

... These databases contain all published mutations and their clinical features. Expert laboratory geneticists then identify the disease-causing mutation(s). You will receive the results in a clear report letter. ...
Slide 1
Slide 1

... © Boardworks Ltd 2004 ...
LLog3 - CH 3 - Immortal Genes
LLog3 - CH 3 - Immortal Genes

... Thymine, Cytosine, and Guanine respectively. From this alphabet you can form 64 possible different kinds of triplets, but from these triplets you only get 20 different amino acids. This is because of the presence of start and stop codons, as well as multiple ways to code for one protein. 2. Replicat ...
1a.Genetics Key Terms
1a.Genetics Key Terms

... A diagram used to predict the results of reproduction between different organisms ...
Introduction to Genetics and Heredity
Introduction to Genetics and Heredity

... c.  Some alleles are dominant, while others are recessive. •  The effects of a dominant allele are seen even if a  recessive allele is present. •  The effects of a recessive allele are seen only if a  dominant allele is not present. ...
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Gene



A gene is a locus (or region) of DNA that encodes a functional RNA or protein product, and is the molecular unit of heredity. The transmission of genes to an organism's offspring is the basis of the inheritance of phenotypic traits. Most biological traits are under the influence of polygenes (many different genes) as well as the gene–environment interactions. Some genetic traits are instantly visible, such as eye colour or number of limbs, and some are not, such as blood type, risk for specific diseases, or the thousands of basic biochemical processes that comprise life.Genes can acquire mutations in their sequence, leading to different variants, known as alleles, in the population. These alleles encode slightly different versions of a protein, which cause different phenotype traits. Colloquial usage of the term ""having a gene"" (e.g., ""good genes,"" ""hair colour gene"") typically refers to having a different allele of the gene. Genes evolve due to natural selection or survival of the fittest of the alleles.The concept of a gene continues to be refined as new phenomena are discovered. For example, regulatory regions of a gene can be far removed from its coding regions, and coding regions can be split into several exons. Some viruses store their genome in RNA instead of DNA and some gene products are functional non-coding RNAs. Therefore, a broad, modern working definition of a gene is any discrete locus of heritable, genomic sequence which affect an organism's traits by being expressed as a functional product or by regulation of gene expression.
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