Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Genetics, Heredity
genetics, traits, heredity,
| Question | Answer |
|---|---|
| Who is responsible for our laws of inheritance? | Gregor Mendel |
| What organism did Mendel study? | Pea plants |
| When was Mendel's work recognized? | 20th century |
| When did Mendel perform his experiments and how many plants did he grow | 1856-1863 28000 pea plants |
| what did Mendel notice about offspring traits? | He found that the plant's offspring retained traits of the parents |
| How is Mendel referred to today? | Father of Genetics |
| in waht contry did Mendel do his research on peas? | Austria |
| Mendel stated that physical traits were inherited as ______ | particles |
| Today we know that particles are actually what? | Chromosomes and DNA |
| Define Trait | any characteristics that can be passed from parent to offspring |
| Define Heredity | passing of traits from parent to offspring |
| Define Genetics | Study of Heredity |
| Name and describe two types of genetic crosses. | Monohybrid cross is cross involving a single trait e.g flower color.... Dihybrid cross a cross involving two traits, e.g flower color and plant height |
| What is used to solve genetic crosses? | used to help solve genetics problems |
| What are alleles and what are the two forms? | Alleles-two forms of a gene (dominant and recessive) |
| Explain the difference between dominant and recessive alleles | Dominant is typically stronger and reessive alleles shows up less often |
| Using a letter of the alphabet, show how each allele would be represented | Dominant (R), Recessive (r) |
| What is a genotype and write 3 possible genotypes | Allele combination for a trait (RR,Rr,rr) |
| What is a phenotype and write possible phenotypes for your genotypes in previous question | The physical feature resulting from a genotype (red, white) |
| Using these alleles, R= red flower and r= yellow flowers, write all possible genotypes and phenotypes | R= red flower RR,Rr,rr Red, Red, Yellow r= yellow flower |
| What are homozygoud genotypes? | Homozygous genotype are gene combination involving 2 dominant or 2 recessive alleles (RR or rr) also called pure |
| Write a homozygous dominant genotype | RR, rr |
| Write a homozygous recessive genotype | Rr |
| What is the meant by a heterozygous genotype? | gene combination of one dominant and one recessive |
| Heterozygous genotypes are also called ...? | Hybrid |
| What two things actually determine an organism's characteristics | Genotype and phenotype |
| Give four reasons that Mendel used garden peas, Pisum sativum, for his experiments. | Small area needed, produce lots of offspring, produce pure plants when allowed to self-pollinate several generations |
| Name the male and female parts of a flowering plant and explain how pollination occurs? | Female; ovary pollen carries sperm to the eggs for fertilization, male; stamen |
| What is the difference between self and cross pollination | Self; same flower cross; different flowers |
| Explain how Mendel cross pollinated his pea plants. | Mendel hand-pollinated flowers using a paint brush, He could snip the stamens to prevent self-pollination... covered each flower with a cloth bag, |
| How did Mendel get pure plants? | He traced traits through several generations, pure strains by allowing the plants to self-pollinate for several generations |
Created by:
1376512113
Popular Biology sets