Which cross produces all heterozygous offspring?

Which cross produces all heterozygous offspring?

P cross
The P cross produces F1 offspring that are all heterozygous for both characteristics.

What is an example of a heterozygous offspring?

If the two versions are different, you have a heterozygous genotype for that gene. For example, being heterozygous for hair color could mean you have one allele for red hair and one allele for brown hair. The relationship between the two alleles affects which traits are expressed.

What percentage of the offspring will be heterozygous?

The Punnett square below makes it clear that at each birth, there will be a 25% chance of you having a normal homozygous (AA) child, a 50% chance of a healthy heterozygous (Aa) carrier child like you and your mate, and a 25% chance of a homozygous recessive (aa) child who probably will eventually die from this …

Can two heterozygotes produce a homozygous?

The expected genotype ratio when two heterozygotes are crossed is 1 (homozygous dominant) : 2 (heterozygous) : 1 (homozygous recessive). Individuals homozygous for the lethal allele (tt in this case) do not survive embryonic development, and are not born. The heterozygotes have a phenotype distinct from normal cats.

What cross will result in all recessive phenotype offspring?

The organism in question is crossed with an organism that is homozygous for the recessive trait, and the offspring of the test cross are examined. If the test cross results in any recessive offspring, then the parent organism is heterozygous for the allele in question.

What percent of the offspring of a cross between a heterozygous and a homozygous dominant individual would have the recessive phenotype?

25%
In a cross between two homozygous dominant individuals, 25% of the offspring may have the recessive phenotype. _____ 5. A parent cell makes gametes through the process of mitosis.

What type of cross would you use to produce progeny that are 100 pink flowering?

To get the most pink flowers, a red and white rose plant must be mated. Red would have two red alleles–RR and white would have two white alleles–WW. In this cross, all of the offspring would inherit one red allele and one white allele-RW and would be 100 percent pink!

What is the phenotype ratio of this heterozygous cross?

The expected genotype ratio when two heterozygotes are crossed is 1 (homozygous dominant) : 2 (heterozygous) : 1 (homozygous recessive). When a phenotypic ratio of 2 : 1 is observed, there is probably a lethal allele.

When two heterozygous parents reproduce what type s of offspring can they produce?

Therefore, the two possible heterozygous combinations produce offspring that are genotypically and phenotypically identical despite their dominant and recessive alleles deriving from different parents.

Can a true breeding cross produce a heterozygous offspring?

A cross between two different true-breeding individuals will produce heterozygous offspring. In genetics, the suffix “-zygous” refers to the allele pair an organism has for any given gene. True-breeding individuals are homozygous, with two of the same allele for a gene, whereas heterozygous individuals have two different alleles for a gene.

What happens when you cross two heterozygous people?

In addition, crossing two individuals that are both heterozygous will yield, on average, 50 percent heterozygous offspring; half of the remaining offspring, on average, will be homozygous for the dominant allele and half homozygous for the recessive allele. Often in genetic research, investigators are interested in more than one gene at a time.

Why do heterozygous offspring have purple flowers?

The heterozygous individuals will have purple flowers because the dominant allele controls phenotype; the dominant allele is expressed while the recessive allele is masked. Other genetic crosses besides crossing two true-breeding, homozygous individuals can yield heterozygous offspring.

What happens when a plant is crossed with a heterozygous plant?

If the plant with purple flowers is crossed with the plant with white flowers, the offspring will be heterozygous. The heterozygous individuals will have purple flowers because the dominant allele controls phenotype; the dominant allele is expressed while the recessive allele is masked.