Punnett Square In Roses having thorns is dominant to not having thorns Use the punnett square to predict the probability that the offspring produced between two heterozygous roses will have thorns ID: 775028
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Slide1
Bellringer: Complete the Punnett Square
In Roses having thorns is dominant to not having thorns. Use the punnett square to predict the probability that the offspring produced between two heterozygous roses will have thorns. T t T t
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Genotype:25% Homozygous TT50% Heterozygous Tt25% Homozygous ttPhenotype:75% Thorns25% No Thorns
TT
Tt
Tt
tt
Slide2Bellringer: Complete the Punnett Square
R- Red flowersr- white flowers R RRr
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RR
RR
Rr
Rr
Genotype:
50% Homozygous RR
50% Heterozygous
Rr
Phenotype:
100% Red Flowers
Slide3Asexual vs. Sexual Reproduction
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-REVIEW:
What is Heredity?
The passing of traits from parents to the offspring.
-MAKE CONNECTIONS:
How is heredity related to reproduction?
Parents create offspring through reproduction which enables them to pass their traits to the next generations.
Slide4Sexual Reproduction
Sexual Reproduction
1. 2 parents: Male and Female 2. Gametes are created through Meiosis: sperm (male)and egg(female)3. Sperm and egg join= fertilization. After fertilization occurs the fertilized egg develops into the offspring.4. Offspring look different from parent (mixed DNA)
Slide5Sexual Reproduction
Meiosis- process of cell division that creates reproductive cells (gametes)with ½ the number of chromosomes as the original parent cell.
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Slide6Slide7Sexual Reproduction
All the members of the Animal KingdomFishMammalsAmphibiansBirdsReptilesInsectsCrustaceans
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Slide8Sexual Reproduction
Plant KingdomFlowers are the reproductive organs of plants.Some flowers have both male and female reproductive organs on the same flower.
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Male flower
Female flower
Slide9Asexual Reproduction
Asexual Reproduction
1. One parent2. No gametes/reproductive cells are involved3. Offspring produced by cell division (Mitosis)4. Offspring identical to parent (same DNA)5. Several different types of asexual reproduction.
Slide10Asexual Reproduction
Offspring have 100% the same chromosomes as the parent.
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Slide11Asexual Reproduction
Binary FissionBacteriaProtists
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Binary fission is a form of asexual reproduction where every organelle is copied and the organism divides in two.
Slide12Plant Reproduction
Plant cuttings (Plantlets)
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Small pieces of a plant are cut off and rooted, to produce a new identical plant.
Slide13Plant Reproduction
Tubers: an underground stem that contains stored nutrients (starch).Potatoes can be cut into pieces with each piece having an “eye” which can grow into a new potato plant.
Slide14Plant Reproduction
Bulbs: Short underground stems surrounded by thick fleshy leaves that contain stored food. New bulbs sprout from the old one.Each bulb can grow into a new plantEx. Onions, tulips, garlic.
Slide15Plant Reproduction
Runner : Stem that grows sideways along the surface of the ground that has buds that can grow into new plants when they contact soil.Ex. Strawberry plants
Slide16Plant Reproduction
Rhizome: Stem that grows sideways underground. Enlarged portions called nodes grow into buds which can form new plants.Ex. Irises, ginger.
Slide17Budding
YeastHydra
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Budding is a means of asexual reproduction
where a
new individual develops from an outgrowth of a parent, splits off, and lives independently.
Slide18Regeneration
-Starfish
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Regeneration occurs when a body part has broken off and the organism grows a new one.
Slide19Regeneration
Fragmentation
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Fragmentation is a means of asexual reproduction
where a single parent breaks into parts that regenerate into whole new individuals.
Leech
Slide20Sporulation: Spore formation
Occurs in fungus, algae and moldTiny spores form inside the parent cell and are released and can grow into an adult organism.
Slide21Homework:
Make a Venn Diagram
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Asexual Reproduction
Sexual Reproduction
Both
Types of reproduction in living organisms
Pass DNA from parent to offspring