If a pea plant that is heterozygous for round, yellow peas (RrYy) is crossed with a pea plant that is
homozygous for round peas but heterozygous for yellow peas (RRYy), how many different phenotypes are
their offspring expected to show?
a. 2
b. 4
c. 8
d. 16

1 Answer

Answer :

a. 2

Related questions

Description : For peas, round seed shape (R) is dominant to wrinkled seed shape (r). A homozygous dominant plant is crossed with a heterozygous plant. What are the expected ratios for genotype and phenotype of the offspring?

Last Answer : rr, Rr

Description : In Mendel's experiments with garden pea, round seed shape (RR) was dominant over wrinkled seeds (rr), yellow cotyledon (YY) was dominant over green cotyledon (yy). What are the ... green cotyledons (c) Only wrinkled seeds with yellow cotyledons (d) Only wrinkled seeds with green cotyledons

Last Answer : (d) Only wrinkled seeds with green cotyledons

Description : How many different allele combinations would be found in the gametes produced by a pea plant whose genotype was RrYY? a. 2 b. 4 c. 8 d. 16

Last Answer : a. 2

Description : If a homozygous dominant parent and a heterozygous parent are crossed what percentage of the offspring are expected to be homozygous recessive?

Last Answer : Rr

Description : A tall plant is crossed with a short plant. If the tall F1 pea plants are allowed to self-pollinate, a. the offspring will be of medium height. b. all of the offspring will be tall. c. all of the offspring will be short. d. some of the offspring will be tall, and some will be short.

Last Answer : d. some of the offspring will be tall, and some will be short.

Description : A double homozygous yello round plant of Pea is crossed with green wrinkled plant. The offspring shall be of

Last Answer : A double homozygous yello round plant of Pea is crossed with green wrinkled plant. The offspring shall ... Two types C. Four types D. Several types

Description : When Gregor Mendel crossed true-breeding tall plants with true-breeding short plants, all the offspring were tall because a. the allele for tall plants is recessive. b. the allele for short plants is dominant. c. the allele for tall plants is dominant. d. they were true-breeding like their parents.

Last Answer : c. the allele for tall plants is dominant.

Description : In pea plants, yellow seeds are dominant to green. If a heterozygous yellow seeded plant is crossed with a green seeded plant, what ratio of yellow and green seeded plants would you expect in F1 generation? (a) 9 : 1 (b) 1 : 3 (c) 3 : 1 (d) 50 : 50

Last Answer : (d) 50 : 50

Description : If you made a Punnett square showing Gregor Mendel's cross between true-breeding tall plants and truebreeding short plants, the square would show that the offspring had a. the genotype of one of the ... . a genotype that was different from that of both parents. d. the genotype of both parents.

Last Answer : c. a genotype that was different from that of both parents.

Description : What sort of discussion can we have about species identification regarding human phenotypes?

Last Answer : I think that if you asked a mockingbird, he would say that we all looked alike and would be able to tell the members of his species apart quite easily.

Description : When Mendel used pea plants true breeding for yellow peas or green peas in an experiment. All the offspring produced from this cross were yellow. When the offspring were allowed to self pollinate one?

Last Answer : yyYy

Description : In the P generation, a tall plant is crossed with a short plant. The probability that an F2 plant will be tall is a. 50%. b. 75%. c. 25%. d. 100%.

Last Answer : b. 75%.

Description : When Gregor Mendel crossed a tall plant with a short plant, the F1 plants inherited a. an allele for tallness from each parent. b. an allele for tallness from the tall parent and an allele for shortness ... parent. c. an allele for shortness from each parent. d. an allele from only the tall parent.

Last Answer : b. an allele for tallness from the tall parent and an allele for shortness from the short parent.

Description : If a homozygous black guinea pig is crossed with a white guinea pig what is the probability that an offspring will have black fur?

Last Answer : depends if the black fur gene is dominant..if it is...then yu would cross BB with bb making all heterozygousgenotypes(Bb)therefore, having all possible offspring with black furso theres a 100% probability of offspring with black fur(:

Description : According to the biological species concept, horses and donkeys are not considered in the same species because A) they never mate. B) they do not produce fertile offspring. C) they look different. D) they do not share a relatively recent common ancestor.

Last Answer : B) they do not produce fertile offspring.

Description : A cross of a red cow (RR) with a white bull (WW) produces all roan offspring (RRWW). This type of inheritance is known as a. incomplete dominance. b. polygenic inheritance. c. codominance. d. multiple alleles.

Last Answer : c. codominance.

Description : The principles of probability can be used to a. predict the traits of the offspring produced by genetic crosses. b. determine the actual outcomes of genetic crosses. c. predict the traits of the parents used in genetic crosses. d. decide which organisms are best to use in genetic crosses.

Last Answer : a. predict the traits of the offspring produced by genetic crosses.

Description : Gregor Mendel concluded that traits are a. not inherited by offspring. b. inherited through the passing of factors from parents to offspring. c. determined by dominant factors only. d. determined by recessive factors only.

Last Answer : b. inherited through the passing of factors from parents to offspring.

Description : Gregor Mendel used pea plants to study a. flowering. b. gamete formation. c. the inheritance of traits. d. cross-pollination.

Last Answer : c. the inheritance of traits.

Description : What is the probability that two heterozygous parents would have an offspring that produced round seeds (Express your answer as a ratio.)?

Last Answer : What is the answer ?

Description : In a plant, red fruit (R) is dominant over yellow fruit (r) and tallness (T) is dominant over shortness (t). If a plant with RRTt genotype is crossed with a plant that is rrtt, (a) 25% will be ... with red fruit (c) 75% will be tall with red fruit (d) all the offspring will be tall with red fruit

Last Answer : (b) 50% will be tall with red fruit

Description : A cross between homozygous recessive and heterozygous plant is - (1) Back cross (2) Test cross (3) Monohybrid cross (4) Dihybrid cross

Last Answer : (2) Test cross Explanation: A cross between homozygous recessive and heterozygous plant is called Test Cross

Description : A cross between homozygous recessive and heterozygous plant is (1) Back cross (2) Test cross (3) Monohybrid cross (4) Dihybrid cross

Last Answer : Test cross

Description : Difference between homozygous and heterozygous. -Biology

Last Answer : answer:

Description : Is DD heterozygous or homozygous?

Last Answer : homozygous

Description : How you can determine whether or not the black parent is homozygous or heterozygous for the condition?

Last Answer : You are not giving enough information to solve this. But, in practice, further crosses will give some clue if the same results occur. If that happens, then the parent in homozygous dominant.

Description : The quickest way to produce homozygous breeding lines from heterozygous parents is through: (a) Half-seed technique (b) doubled haploids (c) Introgression (d) Aneuploidy

Last Answer : (b) doubled haploids

Description : Study the pedigree chart of a certain family given below and select the correct conclusion which can be drawn for the character. (a) The female parent is heterozygous. (b) The parents could not ... The trait under study could not be colour blindness. (d) The male parent is homozygous dominant.

Last Answer : (a) The female parent is heterozygous.

Description : An organism with two identical alleles is (a) dominant (b) hybrid (c) heterozygous (d) homozygous.

Last Answer : (d) homozygous.

Description : An allele is dominant if it is expressed in (a) both homozygous and heterozygous states (b) second generation (c) heterozygous combination (d) homozygous combination.

Last Answer : (a) both homozygous and heterozygous states

Description : A gene is said to be dominant if (a) it expresses its effect only in homozygous state (b) it expresses its effect only in heterozygous condition (c) it expresses its effect both in homozygous and heterozygous condition (d) it never expresses its effect in any condition.

Last Answer : (c) it expresses its effect both in homozygous and

Description : Explain homozygous and heterozygous parents.

Last Answer : Ans: Individuals with similar genes for a character such as TT or tt for length of stem are described as homozygous and the individuals with dissimilar genes for the character such as Tt for length of stem are described as Heterozygous.  

Description : What were Punnett squares developed to do to predict the probability of offspring phenotypes to predict the probability of offspring genotypes neither of the above?

Last Answer : What is the answer ?

Description : A true breeding plant is (a) one that is able to breed on its own (b) produced due to cross-pollination among unrelated plants (c) near homozygous and produces offspring of its own kind (d) always homozygous recessive in its genetic constitution.

Last Answer : c) near homozygous and produces offspring of its own kind

Description : In order to find out the different types of gametes produced by a pea plant having the genotype AaBb it should be crossed to a plant with the genotype (a) AABB (b) AaBb (c) aabb (d) aaBB.

Last Answer : (c) aabb

Description : What genes does a homozygous short pea plant always have?

Last Answer : Need answer

Description : When we place fossil specimens into different species based on their physical appearance, we are using the ___________ concept. A) biological species B) paleospecies C) anagenetic species D) monospecies

Last Answer : B) paleospecies

Description : Two parents have the genotype Aa. What fraction of their offspring would also be heterozygous?

Last Answer : ANSWER: 1/2

Description : If a male who is heterozygous for an autosomal trait mates with a female who is also heterozygous for that trait, what percent of their offspring are likely to be heterozygous for this trait as well?

Last Answer : ANSWER: 50%

Description : When Mendel crossed plants that were heterozygous. -Biology

Last Answer : answer:

Description : Evolution of different species in a given area starting from a point and spreading to other geographical areas is known as (1) Divergent evolution (2) Adaptive radiation (3) Natural selection (4) Migration

Last Answer : Adaptive radiation

Description : What principle states that during gamete formation genes for different traits separate without influencing each other’s inheritance? a. principle of dominance b. principle of independent assortment c. principle of probabilities d. principle of segregation

Last Answer : b. principle of independent assortment

Description : When Mendel crossed a true-breeding short plant with a true-breeding tall plant, all the offspring were tall. Which term describes the gene for tallness?

Last Answer : Dominant.

Description : If a plant with the genotype PP is crossed with a plant with the genotyp pp what are the possible genotypes of the offspring?

Last Answer : Need answer

Description : What happens when a red flowered plant with incomplete dominance is crossed with a pink flowered plant which is the offspring of the crossing of a white flowered plant and a red flowered plant which has incomplete dominance?

Last Answer : The crossing of a red flowered plant and a white flowered plant produces all the offspring with pink flowers. This cross illustrates red and white exhibit incomplete dominance. ... ... the heterozygous offspring will be phenotypically and genotypically different from either of the homozygous parent.

Description : If a dwarf pea plant was treated with gibberellic acid, it became as tall, as tall pea plants. If these pea plants are crossed with pure tall pea plants, what will be the phenotypic ratio in F1 generation? ... (b) 50% tall and 50% dwarf plants (c) 75% tall and 25% dwarf plants (d) 100% tall plants

Last Answer : Ans. ((d))

Description : Surprisingly all men and women are only 10% human but 90% microbial - What is your view on the Human Microbiome Project?

Last Answer : I don't fully get the 10-90 % reference, but I do know that we will die or badly function without the micro-organisms. It's a little bit what I've asked myself. Is the human body to ... to ignore. It's quite possible and likely that we will be treating cancer with engineered viruses in the future.

Description : how many times will my pea plant produce peas?

Last Answer : Pea plants can usually produce 3 and sometimes 4 harvests during the growing season.

Description : Has anyone here browsed the human genome on their iPad? Would you alter your genome if you could?

Last Answer : I don't know. My family gene pool is actually a pot of soup that someone has thrown just about everything into. There's some absolutely great genes balance with a decent amount of crap. I'm ... that changing anything might make the whole thing unstable. I don't want to play Jenga with my genome.

Description : Would it be ethical to allow an alien race to model their DNA with that of the Human body?

Last Answer : You are making the assumption that this alien race would use DNA as its genetic material. In fact, other molecules (such as RNA) could serve a similar purpose (some viruses are RNA viruses, for example), so it might not really work.