This is a section of DNA that codes for a protein...it is transferred from a parent to offspring
This is the location of a gene.
This is the outward appearance of an organism (what can be seen) regardless of its genes
This is a person's genetic make up -- it is the combination of genes in an organism
This is the term for when there are two different alleles for a trait
This is the term for when there are two identical alleles for a trait.
This is an alteration in DNA that may or may not affect functioning.
This is a process of forming new allelic combines off spring by exchanges between genetic materials in chromosomes during meiosis.
In the 19th century, the commonly held belief of inheritance was known as....
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?
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....
These are reproductive cells that when united during sexual reproduction form a zygote.
These are all the cells in the body except for those involved with reproduction:
This is simple cell division -- the process by which somatic cells divide to produce two identical daughter cells.
What is the name of the two identical daughter cells produced during cell division?
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:
What is the name of half of the daughter cells?
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.
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