Dominant and Recessive

Q. B and b are the gene traits for black and nrown hair colour respectively. Black hair are dominant over brown hair. If father has black hair and mother has brown hair. Then what can be the possible hair colour of the offsprings?

1. Only brown
2. Only black
3. Can be either black or brown
4. None of the above

Q.

Can there be a heterozygous recessive ? Explain.

Q.

Is skin color a phenotype or genotype?

Q.

Alternative forms of a gene are called ____________________.

Q. Genetic constitution of an organism is termed as .

1. phenotype
2. genotype
3. dominance

Q.

How many types of gametes are produced by the parents of Mendel’s monohybrid $F_2$ progeny?

1. One

2. Three

3. Two

4. Four

Q. Recessive characters are expressed in both homozygous and heterozygous state.

1. True

2. False

Q. A character that is expressed in the F1 generation is called . The recessive character will be expressed in the generation plants.

1. recessive
2. dominant
3. F1
4. F2

Q. Explain the law of segregation with suitable examples.(please provide the punnett square also).

Q.

Do human albinos have red eyes?

Q. what is dominant and recessive

Q. Why traits maybe dominant or recessive?

Q. Based on the observations of the monohybrid cross, Mendel postulated the law of which distinguished dominant and recessive characters.

1. dominance
2. recessiveness
3. segregation
4. assortment

Q.

The physical appearance of an individual is known as ________.

1. heterotype

2. genotype

3. morphotype

4. phenotype

Q. Which allele is dominant and which one is recessive? And on what basis is it decided? And what exactly is allele, dominant and recessive in simple language.

Q. Explain the law of segregation with suitable example.(please provide the punnet square also).

Q. When a genotype consists of a dominant and a recessive allele for a trait, the phenotype expressed will be .

1. dominant
2. recessive
3. neutral
4. incomplete

Q.

If a male that is homozygous recessive for a trait is crossed with a female that is homozygous recessive for the same trait, what is the possibility of them having offspring with the recessive trait?

1. 0%

2. 100%

3. 50%

4. 25%

Q. If tall is dominant over short (considering plant height), what will be the height of the plant when both, the dominant and the recessive alleles are present?

1. Short
2. Tall
3. Medium
4. Random

Q. Why single recessive gene cannot decide appearance?

Q. State the law of dominance propose by Mendel.

Q.

What happens when alleles have incomplete dominance?

Q. When height of a plant is considered, tall is dominant over short. Which character will be expressed, when both the dominant and the recessive alleles are present in the plant?

1. Tall
2. Short
3. Random
4. Medium

Q. A person who is said to be heterozygous has _______.

1. two dominant alleles
2. two recessive alleles
3. one dominant allele and one recessive allele
4. one dominant trait and one recessive trait

Q. max. height of a plant is 18 feet and min. average height 6 feet. if the plant height is controlled by 3 pairs of polygenes, then height of a plant with genotype AabbCc will be?

Q. In Mendel’s experiments, the $F_1$ progeny resembles one of the two parents. Which of the following trait is not seen?

1. Recessive
2. Dominant
3. Superior
4. Wild

Q. Mendel performed experiments to find how traits are transferred from parents to their kids.

1. False
2. True

Q. State Mendel's law of dominance.​

Q. When height of a plant is considered, tall is dominant over short. Which character will be expressed, when both the dominant and the recessive alleles are present in the plant?

1. Tall
2. Short
3. Medium
4. Random

Q. What is a clone?

1. A heterozygote produced by sexual means.
2. A homozygote or heterozygote produced by asexual means.
3. A heterozygote produced by asexual means.
4. A homozygote produced by sexual means.