Lab 2

Anthropology 270 with Snodgrass at University of Oregon

About this deck

By: Danielle Towne
Textbook:

Introduction to Physical Anthropology 2009-2010 Edition
Created: 2011-10-24
Size: 24 flashcards
Views: 7

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This is a section of DNA that codes for a protein...it is transferred from a parent to offspring

Gene

This is the location of a gene.

Locus

This is the outward appearance of an organism (what can be seen) regardless of its genes

Phenotype

This is a person's genetic make up -- it is the combination of genes in an organism

genotype

This is the term for when there are two different alleles for a trait

Heterozygous

This is the term for when there are two identical alleles for a trait.

Homozygous

This is an alteration in DNA that may or may not affect functioning.

Mutation

This is a process of forming new allelic combines off spring by exchanges between genetic materials in chromosomes during meiosis.

Recombination

In the 19th century, the commonly held belief of inheritance was known as....

Blending

What are the predictions made by the blending theory of inheritance (ie what would we expect to see if the blending theory was correct)?

If you have a tall and a short plant -- when two two reproduced there would be a middle sized plant due to the blending of genes.

What observations made by Mendel contradict the blending theory?

Mendel found that when a tall and short plant were blended there could be a short or tall or medium sized plant -- he observed that there was a conservation of parental traits

Using terms, how would you describe a plant with a genotype SS?

SS would be homozygous dominant

Using terms, how would you describe a plant with a genotype yy?

homozygous recessive

Using terms, how would you describe a plant that had one dominant allele for long stem length (S) and one recessive allele (s) for short stem length?

Ss --- heterozygous1

The disease sickle cell anemia is a defect in the....

hemoglobin molecule

These are reproductive cells that when united during sexual reproduction form a zygote.

Gamete

These are all the cells in the body except for those involved with reproduction:

Somatic Cells

This is simple cell division -- the process by which somatic cells divide to produce two identical daughter cells.

Mitosis

What is the name of the two identical daughter cells produced during cell division?

diploids

This is cell division in specialized cells in the ovaries and testes. It involves two divisions and results in four daughter cells -- each continaing only half the original set of chromosomes. These can develop into gamates:

Meiosis

What is the name of half of the daughter cells?

haploids

What is the difference between autosomes and sex chromosomes?

Autosomes are all chromosomes except the sex chromosomes. Sex chromosomes in mammals are the x and y

How do you determine the sex of an individual by looking at the karyotype?

You look at the 23rd pair of chromosomes and see if they're xx (female) or xy (male

Why do gamates have only 23 chromosomes, one of each pair?

Because half of each chromosomal pair is inherited from the mother's egg and the other half is inherited from the father's sperm. Gamates/sex cells have only 23 pairs of chromosomes because in their cell division, called meiosis, each pair of chromosomes are separated and sent to different cells.

About this deck

By: Danielle Towne
Textbook:

Introduction to Physical Anthropology 2009-2010 Edition
Created: 2011-10-24
Size: 24 flashcards
Views: 7

About StudyBlue

“Simply amazing. The flash cards are smooth, there are many different types of studying tools, and there is a great search engine. I praise you on the awesomeness.”
Dennis