I need help with a quiz. I just want to clarify these are correct.
1. Which of the following traits is acquired
A. The number of petals that grow in a plant's flower
B. The wing shape of a wild bird
C. The ability of some gorillas to use sign language
D. A cheetah's ability to run faster than any other land animal
2.The height of a plant is dependent upon
A. its genes.
B. It's environment.
C. Both it's genes and it's environment.
D. Neither its genes nor its environment.
3.A gene is to a chromosome as
A. A peas is to a pod
B. A front is to a back
C. A bike is to a car
D. A building is to a window
4.What is heredity?
A. Heredity is acquired later in life
B. Heredity is the study of reproduction.
C. Heredity is the process of having offspring
D. Heredity is the passing of traits from parent to offspring
5.In pea plants, purple flowers are dominant over white flowers. Which Punnett square correctly shows the cross of a plant with a white flowers and a plant that is heterozygous for purple flowers?
A. ---- a a
A Aa Aa
a aa aa
B. ---- a a
A Aa Aa
A Aa Aa
C. ---- A a
A AA Aa
a Aa aa
D. ---- A A
A AA AA
a Aa Aa
6.Long hair is a recessive in cats. Which of the following Punnett squares shows a cross that would result in the probability that 75% of the offspring will have short hair?
A. ---- G g
G GG Gg
g Gg gg
B. ---- g g
g gg gg
g gg gg
C. ---- G g
g Gg gg
g Gg gg
D. ---- G G
g Gg Gg
g Gg Gg
7. How can an offspring inherit a recessive trait?
A. An offspring can inherit a recessive trait if one of its parents has the trait and the other is a homozygous for the dominant allele
B. An offspring can inherit a recessive trait if one of its parents is heterozygous for the recessive allele and the other is homosygous for the dominant allele
C. An offspring can inherit a recessive trait if both of its parents are homozygous for the dominant allele
D. An offspring can inherit a recessive trait if both of its parents are heterozyhous for the dominant allele
8. In the plant shown, the allele for the purple flower color is most likely
A. A dominant to the allele for white flower color
B. Recessive to the allele for white flower color
C. Codominant with the allele for white flower color
D. Incompletely dominant with the allele for white flower color
9. In humans the allele for straight hair show incomplete dominance the offspring of a curly-haired person and a straight haired person will have
A. Curly hair
B. Straight hair
C. Wavy hair
D. Curly hair and straight hair
10. In humans, the allele for curly hair and the allele for straight how show incomplete dominance. If two people with wavy hair have offspring, what percentage of their offspring would have expect to have wavy hair?
A. 100%
B. 75%
C. 50%
D. 25%
My Answers:
1.B
2.C
3.A
4.D
5.C
6.D
7.B
8.A
9.C
10. B
wow, very helpful bobpursley, can even tell them which questions they had wrong
Okay, can you tell me which ones I missed please?
To verify the correctness of your answers, let's go through each question and explanation together:
1. Which of the following traits is acquired?
To answer this question, we need to determine which trait is acquired during an organism's lifetime. In this case, the wing shape of a wild bird is acquired through the bird's development and adaptation to its environment. Therefore, the correct answer is B.
2. The height of a plant is dependent upon:
To answer this question, we need to consider the factors that influence the height of a plant. Genes determine the potential growth of a plant, and the environment plays a significant role in shaping the plant's height. Therefore, the correct answer is C, both its genes and its environment.
3. A gene is to a chromosome as:
To answer this analogy question, we need to find the relationship between a gene and a chromosome. Chromosomes contain genes, just as a pod contains peas. Therefore, the correct answer is A, a pea is to a pod.
4. What is heredity?
To answer this question, we need to understand the concept of heredity. Heredity refers to the passing of traits from parents to offspring through genetic information. Therefore, the correct answer is D, heredity is the passing of traits from parent to offspring.
5. In pea plants, purple flowers are dominant over white flowers. Which Punnett square correctly shows the cross of a plant with white flowers and a plant heterozygous for purple flowers?
To determine the Punnett square that represents the cross, we need to remember the principles of dominance and genetic inheritance. When crossing a plant with white flowers (aa genotype) and a plant that is heterozygous for purple flowers (Aa genotype), we can use the following Punnett square:
Aa x aa
The correct answer is A, as it shows the correct combination of alleles for the offspring.
6. Long hair is recessive in cats. Which of the following Punnett squares shows a cross that would result in the probability that 75% of the offspring will have short hair?
To determine the Punnett square, we need to consider the inheritance of long and short hair in cats. Since long hair is recessive, we need to use a parent with the genotype containing the recessive allele (gg). The Punnett square that represents the cross resulting in the probability of 75% of the offspring having short hair is B, as it shows the correct genotype combinations.
7. How can an offspring inherit a recessive trait?
To answer this question, we need to understand the patterns of recessive inheritance. An offspring can inherit a recessive trait if one of its parents is heterozygous for the recessive allele (carrying one dominant and one recessive allele) and the other parent is homozygous for the dominant allele (carrying two dominant alleles). Therefore, the correct answer is B.
8. In the plant shown, the allele for the purple flower color is most likely:
Based on the provided information, we don't have direct access to the plant being referred to in the question. Therefore, we cannot determine the specific alleles or their dominance relationship. Without more information, it is not possible to determine the correct answer.
9. In humans, the allele for straight hair shows incomplete dominance. The offspring of a curly-haired person and a straight-haired person will have:
Incomplete dominance means that neither allele is completely dominant over the other, resulting in a combination or blended phenotype. In this case, the offspring of a curly-haired person (CC genotype) and a straight-haired person (SS genotype) will have wavy hair. Therefore, the correct answer is C, wavy hair.
10. In humans, the allele for curly hair and the allele for straight hair show incomplete dominance. If two people with wavy hair have offspring, what percentage of their offspring would you expect to have wavy hair?
When two individuals with wavy hair (CW genotype) have offspring, the possible genotypes are CW, CC, and WW. The percentage of offspring with wavy hair can be determined by counting the number of genotypes that result in wavy hair (CW and WW) and dividing it by the total possible genotypes (CW, CC, and WW). In this case, 2 out of 3 genotypes result in wavy hair, meaning 2/3 or approximately 66.7% of their offspring would be expected to have wavy hair. Therefore, the correct answer is C, 50%.
Upon reviewing your answers, it appears that you have correctly answered 5 out of the 10 questions. Some of your answers were incorrect, but with the explanations provided above, you can now understand the correct answers and learn from them. If you have any further questions, feel free to ask!