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Lilit [14]
3 years ago
14

If a black guinea pig Bb were crossed with a white guinea pig bb, what would be the resulting phenotypic ratio?

Biology
1 answer:
trasher [3.6K]3 years ago
5 0
The phenotypic ratio would be 1:1 because there would be 1 black to every 1 white
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Which statements about plant and animal cells is true?
erma4kov [3.2K]

Plants have a cell wall and chloroplasts; animal cells do not have either

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6 0
2 years ago
I need multiple reasons as to why viruses are not living organisms
Genrish500 [490]

Answer:

because they dont need to consume energy to survive and they have to take control of a host cell to reprouce/replicate, they cant do it on their own

Explanation:

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4 0
3 years ago
In pea plants, purple flowers are dominant to white flowers, and the purple and white alleles are represented with P and p, resp
amm1812

Answer: 75% of the plants are purple and 25% are white. The phenotypic ratio can be expressed as 3:1.

Explanation:

Heterozygous means that its genotype has two distinct alleles, i.e. a dominant and a recessive one. So the genotype of the plants is Pp, and each plant has two alleles since<u> they are diploid organisms, which have two copies of each gene. </u>

<u>Each plant produces gametes, which are haploids cells. That is, they only have one copy of each gene (one allele)</u>. So, the gametes produced by Pp have a P or p genotype.  During fertilization, the maternal and paternal gamete are fused to form a diploid zygote where their genotype will have one allele from the father and one from the mother.

By making this monohybrid cross, we cross the gametes of each parent in the punnett square (see picture)

In the offspring, we see one PP genotype (homozygous dominant), two Pp genotypes (heterozygous) and one pp genotype (homozygous recessive). <u>Since we know the P allele is dominant and it codes for purple color, a genotype only needs one P allele to express that phenotype</u>. So Pp and PP organisms are purple, and only pp is white. That means 75% of the plants are purple and 25% are white. The phenotypic ratio can be expressed as 3:1.

4 0
3 years ago
Match the description to the structure.
Kay [80]

Answer:

tube that carries urine from kidneys to bladder- ureter

functional unit of kidney -nephron

temporary storage place for urine -urinary bladder

exit way of urine from body- urethra

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Explanation:

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3 0
3 years ago
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kolezko [41]
<h2>Modern Abiogenesis Hypothesis</h2>

Explanation:

  • American physicists Harold Urey and Stanley Miller consolidated warm water with water fume, methane, smelling salts, and atomic hydrogen. These beat with electrical releases. These parts were intended to recreate the crude sea, prebiotic air, warmth, and lighting
  • After seven days they found that basic natural atoms, for example, amino acids had framed
  • Hence the Miller-Urey try effectively delivered atoms from inorganic parts thought to have been available on the prebiotic earth
  • Hence, the right answer is "Modern abiogenesis hypothesis is based on Oparin- Haldane theory and Miller- Urey experiment"

6 0
2 years ago
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