How can smoking harm an unborn baby?

A plant with the dominant trait, wrinkled seeds, is crossed with a plant that has non-wrinkled seeds. All of the offspring are a

laila [671]

The answer is 0 percent.

If we represent dominant trait (wrinkled seeds) with A and recessive trait (non-wrinkled seeds) with a, then genotypes are AA (dominant homozygous), Aa (heterozygous), and aa (recessive homozygous). The phenotype of wrinkled seed is determined by genotypes either Aa or AA. Since the cross of a plant with wrinkled seed with a plant with non-wrinkled sees gives only wrinkled-seeded offspring, the plant with wrinkled seeds must be dominant heterozygous.
Let's look at both examples.
If wrinked-seeded parent contains one non-wrinkled allele, it must be heterozygous (Aa):

Parents: Aa x aa
Offspring: Aa Aa aa aa

So, the 50% of offspring has wrinkled seeds and 50% has non-wrinkled seeds.

If the wrinkled-seeded parent does not contain any non-wrinkled allele:
Parents: AA x aa
Offspring: Aa Aa Aa Aa

Thus, all of the offspring are heterozygous and all of them have wrinkled seeds.

3 0

3 years ago

Read 2 more answers

1. Which situation is NOT an example of homeostasis within a cell?

Alla [95]

The correct option is C.
Homeostasis refers to the method by which living organisms regulate their internal environments. The conditions that surround the living cells has to be kept at the optimum level because the survival of the organism depend on it and this is what homeostasis does.

6 0

3 years ago

Information from all sensory systems comes together in the _____ of the brain to generate knowledge of where our body is located

pickupchik [31]

The answer to this question should be: somatosensory cortex.

The information from all sensory system will be collected into the somatosensory cortex. The sensation of body location is called proprioception. It was caused by the receptor in muscle spindle or in the joints. This receptor is the one responsible for the phantom limb in amputated patient.

6 0

3 years ago

Cross a heterozygous plant with a plant that has wrinkled seeds.

Soloha48 [4]

Answer:

Round seeds are dominant to wrinkled seeds.

Explanation:

What would be the parent genotypes if you crossed a heterozygous with a wrinkled seed plant? Round seeds are dominant to wrinkled seeds. What percentage of the offspring would be round if you crossed a wrinkled seed plant with a heterozygous plant? Round seeds are dominant to wrinkled seeds.

8 0

3 years ago

12.36Un balón lleno contiene 12 kg de oxígeno, O2, bajo una presión ma-nométrica de 40 atm. Determine la masa de oxígeno que se

const2013 [10]

Answer:

Quedan 7.317 kilogramos de oxígeno en el balón y se extraen 4.683 kilogramos de oxígeno en el proceso.

Explanation:

Asúmase que el balón es rígido. Supongamos que el oxígeno se comporta como un gas ideal, entonces la ecuación de estado es la siguiente:

$P\cdot V = \frac{m\cdot R_{u}\cdot T}{M}$ (1)