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Genetics and Heredity. Use the Punnett Square on the board to answer the next few questions. Remember to use your activote when you have chosen your correct answer. 3 . AFTER we have discussed and displayed the correct answer, fill in your study sheet accordingly. - PowerPoint PPT Presentation
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Genetics and Heredity
1. Use the Punnett Square on the board to answer the next few questions.
2. Remember to use your activote when you have chosen your correct answer.
3. AFTER we have discussed and displayed the correct answer, fill in your study sheet accordingly.
What gene combinations should appear in the empty Punnett Square boxes?
a. Bb, Bb, bb, bb
b. BB, BB, BB, bb
c. Bb, bb, bb, BB
d. Bb, bB, Bb, bB
Are there any pure dominant gene combinations?
a. Yes b. No
If there was a pure dominant gene combination, what would it have been?
a. Bb b. BB c. bb
Are there any pure recessive?
a. Yes b. No
What is the gene combination of the pure recessive traits?
a. bb b. Bb c. BB
Which parent is pure for the trait?
a. Mother b. Father
Which parent is hybrid for the trait?
a. Mother b. Father
A gene combination in which a mixture of traits shows is called?
a. Mixing
b. Blending
c. Reproduction
d. Dominance
The nitrogen bases that help for the steps of a DNA ladder must join in a certain way. What is the correct way?a. Adenine—guanine, thymine---cytosine
b. Thymine---guanine, adenine---cytosine
c. Thymine---adenine, cytosine---guanine
d. Adenine---guanine, guanine---cytosine
The sides of a DNA ladder are made of?
a. Phosphates
b. Sugars
c. Phosphates and sugars
d. Nitrogen bases
An organism with two like genes for a trait is said to be?a. Hybrid
b. Simple
c. Heterozygous
d. pure
A dominant gene always shows itself over what?
a. A blended gene
b. A recessive gene
c. A progressive gene
d. A regressive gene
A pea plant with two tall genes is said to be_________________.
a. Hybrid dominant
b. Recessive dominant
c. Pure dominant
d. Very dominant