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3 years ago

Answer these questions please

Biology

1 answer:

kaheart [24]3 years ago

8 0

Answer No 1)

For a trait to be homozygous dominant, both the alleles of a gene should be the same dominant ones. For example, lets consider black to be a dominant colour in pigs. In this scenario the genotype for homozygous dominant parent will be BB. A dominant trait is the one which can mask the effect of a recessive trait.

Answer No 2)

A recessive trait can be described as the trait which gets suppressed by the dominant trait. For example, lets consider red colour to be recessive in the pigs. In this case, the genotype of the homozygous recessive parent will be bb.

Answer No 3)

To determine the genotype of the offspring, lets make a punnet square:

b b

B Bb Bb

The colour of the offspring will be black as it was the dominant trait. The genotype will be heterozygous dominant i.e Bb.

Explanation:

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Suppose that the pedigree shown in the transparency is for a trait caused by recessive allele.is it possible to infer from the p

kicyunya [14]

As we can see in the pedigree, both of the parents do not possess the trait, but one of the four offspring (marked with red) is expressing the trait.
Since the trait is recessive, the only way that is possible that the parents who do not possess the trait to have the offspring with the trait is that the parents are heterozygous for the trait. Meaning that both of the parents have one dominant allele and one recessive allele.

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3 years ago

Which of the following is not a characteristic of all living organisms? A)energy utilization B)complex yet organized C)capable o

muminat

<em>Lets take a look at all the choices:</em>

A) Energy utilization

All organisms require energy to survive. That question is out for sure!

B) Complex Yet Organized

All living organisms are complex, and if they weren't organized, well, they wouldn't exist or they would have some serious problems!

C) Capable of Self-Reproduction

Simple: Not all organisms are able to reproduce asexually, for example, humans. We do not reproduce asexually. Therefore it is not a characteristic of <u>ALL</u> living organisms

D) Composed of Multiple Cells

No-brainer! All living organisms are composed of multiple cells!!!!!!!!!!!!

Therefore, the answer is C) Capable of Self-Reproduction

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3 years ago

Question 6

Alekssandra [29.7K]

Answer:

Meotic cell division (mitosis)

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3 years ago

Which of the following examples can cause gene flow between populations?

I am Lyosha [343]

Bird droppings that contain seeds from a different location" is the correct answer. Sometimes when seeds from different areas are ingested, the genetic material is passed on.

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3 years ago

Read 2 more answers

Briefly explain how cell differentiation and cell death are both needed to develop such structures as human hands and feet.

Diano4ka-milaya [45]

Answer:

Apoptosis also plays a key role in human development. For instance, as we saw in the introduction, your hand started out as a paddle-like block of tissue when you were an embryo. The block was “carved” into fingers by apoptosis of the cells in between the developing fingers.

Explanation:

6 0

2 years ago