Genetics, Heredity Word Scramble
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| 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 |
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