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Trava [24]
3 years ago
11

A recessive trait is expressed only in an individual who is

Biology
1 answer:
Ipatiy [6.2K]3 years ago
3 0
The correct answer is B - homozygous
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In the space provided below draw electron dot diagram's for the following atoms: nitrogen (N), hydrogen (H), oxygen (O), and car
mart [117]
From  periodic  table carbon  have six  electrons nitrogen  has  seven  electrons  while oxygen  has  eight  electrons.  it s  electronic  configuration  for  carbon is 2.4, for nitrogen  is 2.5 while  that  for  oxygen is 2.6.    Their dot  diagram   are  as follows

3 0
3 years ago
Electricity is added to recharge a battery. What is added to ADP to form ATP?
White raven [17]

Electricity is added to recharge a battery. A third phosphate group  is added to ADP to form ATP.

ATP or Adenosine triphosphate contains adenine, ribose and 3 phosphate groups.

ADP is converted to ATP by the following reaction:

ADP+Pi+energy⇄ATP

The analogy between battery and ATP can be explained as ATP is higher energy form and ADP is lower energy form like charged and uncharged form of the battery. When the terminal or third phosphate is removed from the ATP it becomes ADP and releases energy like a battery. The additional phosphate group when added to ADP forms the ATP molecule like the energy spent by the batteries are recharged by putting in additional energy. Here the additional energy is provided by the third phosphate group.

6 0
4 years ago
Read 2 more answers
Science fermentation does not not require oxygen in said to be
xz_007 [3.2K]

Answer:

d. anaerobic

Explanation

anaerobic means no oxygen and fermentation occurs when there is a lack of oxygen

4 0
3 years ago
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Attached earlobes are recessive to free earlobes. What genotypic ratio is expected when an individual with attached earlobes mat
Marianna [84]

Answer:

C

Explanation:

This is a monohybrid cross between involving a gene coding for earlobe. The allele for free earlobe (F) is dominant over that of attached earlobe (f).

N.B: let F represent the gene involved.

A genotypic ratio is the ratio derived from the offsprings based on the actual genetic make-up and not based on their phenotypic appearance as in phenotypic ratio.

A homozygous individual is an individual having the same kind of alleles for a gene while a heterozygous individual is one that has two different alleles i.e. combination of the dominant and recessive allele.

The monohybrid cross is between an individual with attached earlobe (ff) i.e. homozygous recessive individual. (Note that, a recessive trait will only be expressed in a homozygous state) and a heterozygous free earlobeb individual (Ff). (See attached picture). Ff × ff

The resulting four offsprings will

be expected to have only two distinct genotypes i.e heterozygous (Ff) and homozygous recessive (ff) in an equal ratio i.e. 2:2 ~ 1:1

4 0
3 years ago
1. Where are the Galapagos Islands located? (5 points)
jarptica [38.1K]

Answer:

1. Archipelago in Ecuador

2. Different beaks

3. He used Darwinism/ survival of the fittest / evolution to explain these adaptations. The birds on different islands adapted to varying, but specific food types.

4. mutation, gene flow, genetic drift, and natural selection.

Mutation creates new genetic variation in a gene pool.

Gene flow and genetic drift alter allele frequencies in a gene pool.

5. The finches have few predators / competition for food.

Explanation:

3 0
3 years ago
Read 2 more answers
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