genetics exam revision
REVISION FOR GENETICS EXAM
1. Make sure you KNOW and UNDERSTAND the following TERMS and DEFINITIONS:
-DNA - diploid
- genes - haploid
- chromosomes - crossing over
- sex cells - fertilisation
- somatic cells - gamete
- autosomes - zygote
- sex chromosomes - phenotype
- karyotype - genotype
- eukaryotic cell division - dominant
- mitosis - recessive
- meiosis - homozygous
- heterozygous - incomplete dominance
- codominance - pure bred
- hybrid - monohybrid cross
2. Make sure you know all there is to know about MITOSIS & MEIOSIS: (Reference: Jacplus Yr 10 Textbook, Section 2.4 “Dividing to Multiply”)
Study the MITOSIS & MEIOSIS DIAGRAMS in this section. You should be able to tell the DIFFERENCES between MITOSIS and MEIOSIS.
3. - Goto the Yr 10 SCIENCE MOODLE. - Then go into the “Cell Division” folder - Download the COMPARISON_OF_MITOSIS_AND_MEIOSIS worksheet. You should be able to place the comparisons in the CORRECT ORDER.
4. GENETIC CROSSES and PUNNETT SQUARES: ANSWER THE FOLLOWING QUESTIONS
1. Use the information for SpongeBob’s traits to write the phenotype (physical appearance) for each item.
(a) LL-______________ (e) Rr-_______________ (b) yy-_______________ (f) ll- _______________ (c) Ss-_______________ (g) ss- _______________ (d) RR - _____________ (h) Yy -______________
2. Use the information in this chart to write the genotype (or genotypes) for each trait below.
(a) Yellow body - ___________ (b) Roundpants - ___________ (c) Oval eyes - ______________ (d) Long nose - _____________
(e) Stubby nose - ___________ (f) Round eyes - ____________ (g) Squarepants - ___________ (h) Blue body - ____________
3. Determine the genotypes for each using the information in the chart in #1. (a) Heterozygous round eyes -_____ (c) Homozygous long nose - ______ (b) Purebred squarepants - ______ (d) Hybrid yellow body -
1. Make sure you KNOW and UNDERSTAND the following TERMS and DEFINITIONS:
-DNA - diploid
- genes - haploid
- chromosomes - crossing over
- sex cells - fertilisation
- somatic cells - gamete
- autosomes - zygote
- sex chromosomes - phenotype
- karyotype - genotype
- eukaryotic cell division - dominant
- mitosis - recessive
- meiosis - homozygous
- heterozygous - incomplete dominance
- codominance - pure bred
- hybrid - monohybrid cross
2. Make sure you know all there is to know about MITOSIS & MEIOSIS: (Reference: Jacplus Yr 10 Textbook, Section 2.4 “Dividing to Multiply”)
Study the MITOSIS & MEIOSIS DIAGRAMS in this section. You should be able to tell the DIFFERENCES between MITOSIS and MEIOSIS.
3. - Goto the Yr 10 SCIENCE MOODLE. - Then go into the “Cell Division” folder - Download the COMPARISON_OF_MITOSIS_AND_MEIOSIS worksheet. You should be able to place the comparisons in the CORRECT ORDER.
4. GENETIC CROSSES and PUNNETT SQUARES: ANSWER THE FOLLOWING QUESTIONS
1. Use the information for SpongeBob’s traits to write the phenotype (physical appearance) for each item.
(a) LL-______________ (e) Rr-_______________ (b) yy-_______________ (f) ll- _______________ (c) Ss-_______________ (g) ss- _______________ (d) RR - _____________ (h) Yy -______________
2. Use the information in this chart to write the genotype (or genotypes) for each trait below.
(a) Yellow body - ___________ (b) Roundpants - ___________ (c) Oval eyes - ______________ (d) Long nose - _____________
(e) Stubby nose - ___________ (f) Round eyes - ____________ (g) Squarepants - ___________ (h) Blue body - ____________
3. Determine the genotypes for each using the information in the chart in #1. (a) Heterozygous round eyes -_____ (c) Homozygous long nose - ______ (b) Purebred squarepants - ______ (d) Hybrid yellow body -