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Tay-Sachs disease is inherited in an autosomal recessive manner. Which term is used to describe a person who has the gene for Tay-Sachs, but does not have the disease?
50% yellow eyes; 50% white eyes 50% long wings; 50% short wings
Three-fourths of the petals in the offspring will be smooth, and one-fourth will be wrinkled.
WW and WW
ST and St
Organisms inherit two copies of each gene, but donate only one copy to each gamete.
carrier
50%
Allele pairs separate independently of each other during meiosis.
Mendel conducted many different dihybrid crosses of pea plants. He found very similar phenotypic ratios in each second generation, regardless of the combinations of traits. Based on these results, what did Mendel state in his law of independent as
50% yellow eyes; 50% white eyes 50% long wings; 50% short wings
Three-fourths of the petals in the offspring will be smooth, and one-fourth will be wrinkled.
WW and WW
ST and St
Organisms inherit two copies of each gene, but donate only one copy to each gamete.
carrier
50%
Allele pairs separate independently of each other during meiosis.
Having a widow's peak is the dominant trait (W), while lacking a widow's peak is the recessive trait (w). If 100% of the offspring are heterozygous, what are the genotypes of the parents?
50% yellow eyes; 50% white eyes 50% long wings; 50% short wings
Three-fourths of the petals in the offspring will be smooth, and one-fourth will be wrinkled.
WW and WW
ST and St
Organisms inherit two copies of each gene, but donate only one copy to each gamete.
carrier
50%
Allele pairs separate independently of each other during meiosis.
Which sentence BEST expresses a main idea stated in Mendel's law of segregation?
50% yellow eyes; 50% white eyes 50% long wings; 50% short wings
Three-fourths of the petals in the offspring will be smooth, and one-fourth will be wrinkled.
WW and WW
ST and St
Organisms inherit two copies of each gene, but donate only one copy to each gamete.
carrier
50%
Allele pairs separate independently of each other during meiosis.
The genotype of a female pea plant is SSTt. Which combinations of alleles could be present in gametes produced by this plant?
50% yellow eyes; 50% white eyes 50% long wings; 50% short wings
Three-fourths of the petals in the offspring will be smooth, and one-fourth will be wrinkled.
WW and WW
ST and St
Organisms inherit two copies of each gene, but donate only one copy to each gamete.
carrier
50%
Allele pairs separate independently of each other during meiosis.
Researchers crossed a heterozygous tall pea plant (Tt) with a homozygous short pea plant (tt). What is the probability that this cross will produce homozygous short (tt) offspring?
50% yellow eyes; 50% white eyes 50% long wings; 50% short wings
Three-fourths of the petals in the offspring will be smooth, and one-fourth will be wrinkled.
WW and WW
ST and St
Organisms inherit two copies of each gene, but donate only one copy to each gamete.
carrier
50%
Allele pairs separate independently of each other during meiosis.
A heterozygous plant (Ss) is crossed with a plant homozygous dominant (SS) for smooth petals. S is dominant for smooth petals, and s is recessive for wrinkled petals. What will MOST LIKELY be the petal texture of the first generation of offspring?
50% yellow eyes; 50% white eyes 50% long wings; 50% short wings
Three-fourths of the petals in the offspring will be smooth, and one-fourth will be wrinkled.
WW and WW
ST and St
Organisms inherit two copies of each gene, but donate only one copy to each gamete.
carrier
50%
Allele pairs separate independently of each other during meiosis.
A fruit fly is heterozygous for both eye color and wing length (EeWw). E is dominant for yellow eyes. e is recessive for white eyes. W is dominant for long wings. w is recessive for short wings. What would be the distribution of gametes?
50% yellow eyes; 50% white eyes 50% long wings; 50% short wings
Three-fourths of the petals in the offspring will be smooth, and one-fourth will be wrinkled.
WW and WW
ST and St
Organisms inherit two copies of each gene, but donate only one copy to each gamete.
carrier
50%
Allele pairs separate independently of each other during meiosis.
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