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2 years ago

PLS HELP ASAP WILL MARK BRAINLIEST!

1 answer:

katrin2010 [14]2 years ago

7 0

For anyone taking this test, Salinity Levels is incorrect and Product 1 because it is presumed to be more effective at removing plastic is incorrect,

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Which of the following offspring genotypes could result from the fertilization of an egg that had undergone nondisjunction in me

Lorico [155]

Answer:

See explanation below

Explanation:

<em>Non-disjunction occur as a result of lack of separation of homologous chromosomes during meiosis. </em>

As a result, the gametes (the daughter cells formed) produced end up having extra or lesser chromosomes as compared to a normal gamete.

When a gamete with extra chromosome fertilizes a normal gamete, the resulting offspring will have an extra chromosome (trisomy condition).

On the other hand, when a gamete with one less chromosome than normal fertilizes a normal gamete, the resulting offspring will have one less chromosome than normal offspring (monosomy condition).

Assuming a chromosome with Aa gene undergoes non disjunction during meiosis, the resulting gametes either contain both A and a chromosome or contain no chromosome at all.

If Aa gamete is fertilized by a normal haploid sperm (a), the resulting zygote will have the genotype Aaa.

If a gamete with no chromosome at all fertilizes a normal haploid sperm, the resulting offspring will have the genotype a.

5 0

1 year ago

Read 2 more answers

When two plants, both tall, were crossed, they produced some offspring that were dwarves. Assuming that the height of the plant

Strike441 [17]

T- tall allele
t- dwarf allele

This cross needs to be between 2 plants with the same genotype, like Tt xTt

In this cross it would result in:
1/4 of the plants being tall homozygote- TT
2/4 of the plants being tall heterozygote- Tt
1/4 of the plants being dwarfs homozygote- tt

5 0

1 year ago

Read 2 more answers

What percentage of sheep had a body height of 1.2 meters or more 30 years ago? How does it differ from the present data? Does th

Marysya12 [62]

Answer:Thirty years ago, 45 out of 200 individuals, or 22.5% of individuals, were at least 1.2 meters tall. Presently, 50.5% of individuals are at least 1.2 meters tall. Meanwhile, individuals below 1.2 meters in height have decreased significantly between the two years of data. This data supports the argument that directional selection is occurring.

Explanation:

8 0

1 year ago

In humans, black hair (B) is dominant over red hair (b) and having six fingers (F) is dominant over having five fingers (f). Sal

Lera25 [3.4K]

Answer:

Genotype & Phenotype

BbFf - 4

bbFf - 4

Bbff - 4

bbff- 4

Phenotype

BbFf – Black Hair with six fingers

bbFf – red hair with six fingers

Bbff – Black hair with five fingers

Bbff – red hair with five fingers

Explanation:

Given

Black hair allele is represented by "B"

Red hair allele is represented by "b"

Trait of having six fingers is represented by "F"

Trait of having five fingers is represented by "f"

Also , B is dominant over b and F is dominant over f

Genotype of sally having black hair and five fingers when her father has red hair is Bbff

Genotype fo Bill having red hair and six fingers when his mother had five fingers is bbFf

Bbff * bbFf

Bf bf Bf bf

bF BbFf bbFf BbFf bbFf

bf Bbff bbff Bbff bbff

bF BbFf bbFf BbFf bbFf

bf Bbff bbff Bbff bbff

Genotype & Phenotype

BbFf - 4

bbFf - 4

Bbff - 4

bbff- 4

Phenotype

BbFf – Black Hair with six fingers

bbFf – red hair with six fingers

Bbff – Black hair with five fingers

Bbff – red hair with five fingers

5 0

1 year ago

The term secretion refers to Group of answer choices A.the process by which a cell releases a substance into the extracellular s

emmasim [6.3K]

Answer:

The term secretion refers to the cell that releases a substance into the extracellular space.

Explanation:

When a cell or organ or gland produce and secretes substance in to extracellular space,this biochemical process is called as secretion.

The secretory products may be hormone, enzymes etc.

This process facilitates the movement of material from one place to another place.

For example, Pituitary gland produce and release prolactin hormone that induces breast cells to produce lactation during sucking process done by baby.

Pituitary gland also secrete different hormones that acts on different glands like adrenal, testes, ovary, thyroid gland etc that in turn produce different hormones like adrenaline,testosterone,estrogen,progesterone, TSH,T3, hormone etc.

3 0

1 year ago