When you cross a tall pea plant with a short pea plant the offspring will be?
When a tall and short plant are crossed, all of the offspring are tall. If the offspring self-fertilize, they produce tall and short plants in a ratio of 3:1 in the next generation. Mendel’s actual counts were 787 tall:277 short plants in this generation (2.84:1 ratio).
When Mendel crossed a homozygous tall pea plant with a homozygous short pea plant what offspring was produced?
1 Answer. 25% of the heterozygous cross are short, and the offspring of a homozygous dominant and homozygous recessive pea plant will always display the dominant trait (phenotype), because they are heterozygous.
Why are the plants always tall when a tall pea plant is crossed with a short pea plant?
Answer: When a tall pea plant is crossed with a short pea plant, the resultant progeny is always tall because tall is dominant trait and short is recessive trait. Therefore, dominant trait expresses itself in the progeny.
When heterozygous tall TT pea plants are crossed with each other the phenotypic ratio of tall to dwarf in the offspring is?
In a cross between heterozygous tall plants (Tt) and a homozygous dwarf plant (tt), the ratio in the offspring shall be 1 tall : 1 dwarf. This is because the heterozygous plant will make two types of gametes, one type having T allele and the other having t allele. Hence, the correct answer is ‘1 tall : 1 dwarf’
When two heterozygous tall pea plants are crossed what would the expected?
Biology Genetics Review
|When two heterozygous tall pea plants are crossed, the expected genotype ratio of the offspring is _________________________.||1:2:1|
|An organism’s gametes have ____________________ the number of chromosomes found in the organism’s body cells.||half|
When tall and dwarf plants are crossed?
Complete Answer: A) Dominance: A cross between pure breeding tall (TT) and dwarf (tt) plant produces all tall hybrids (Tt). The allele that can express itself in the heterozygous individual is called the dominant factor.
When phenotypically tall plant is crossed with pure dwarf plant what Cross is this?
When Mendel crossed a tall plant with a dwarf plant no medium height plants were obtained in F1 Generation Why?
When Mendel crossed a Tall plant with a dwarf plant, no medium height plants were obtained in F generation. Why? Ans. Because dominant genes express themselves and suppress the effect of recessive genes.
When a pure tall and a pure dwarf pea plant is crossed in f2 generation TT TT TT is?
So, the correct option is ‘Tall and dwarf in the ratio of 3:1’.
What is the ratio of tall to short plants?
F2 Genotypic ratio =1 pure tall (TT) : 2 heterozygous tall (Tt) : 1 pure dwarf (tt); thus, the ratio of pure tall to pure short plants will be 1:1.
What is Monohybrid Cross arrive at the phenotypic and genotypic ratio of F2 generation?
Two phenotypes (Tall and Dwarf) are seen in F2 generation of monohybrid cross. The ratio of phenotype is 3:1.
How do you calculate percent phenotype?
Count the total number of boxes in your Punnett Square. This gives you the total number of predicted offspring. Divide the (number of occurrences of the phenotype) by (the total number of offspring). Multiply the number from step 4 by 100 to get your percent.