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4 years ago

5

And cabbage butterfly’s white color is dominant and yellow color is recessive if a pure white cabbage butterfly meant to the yel

low cabbage butterfly all the resulting butterflies are heterozygous white which cross represent the genotypes of the parents generation

1 answer:

Dominik [7]4 years ago

8 0

one parent has to be homozygous dominant, and the other parent has to be homozygous recessive.

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Q: Those are called homolgous structures because the skeletons are very similar and imply a common ancestor!!!! HOW DO I ANSWER

katrin2010 [14]

The skeletons may be similar but it usually focuses on one part. Meaning that the homologous structure would be a monkey paw, or the flipper of a whale.

They would be in the same classification. Such as humans are called homo sapien sapien. The family would be homo if I'm correct, meaning that if scientists are able to use the DNA of that structure to relate it to a common ancestor.

It would be true. Or if it's a multiple choice question, we need to know the choices.

6 0

4 years ago

Contrast the genetic content and the origin of sister versus nonsister chromatids during their earliest appearance in prophase I

11111nata11111 [884]

Complete question:

Question: Contrast the genetic content and the origin of sister versus nonsister chromatids during their earliest appearance in prophase I of meiosis.

a) Sister chromatids are genetically similar, except where mutations may have occurred during DNA replication. Nonsister chromatids are genetically dissimilar.

b. Sister chromatids are genetically identical, except where mutations may have occurred during DNA replication. Nonsister chromatids are genetically similar if on homologous chromosomes and genetically dissimilar if on nonhomologous chromosomes.

c. Sister chromatids are genetically identical, except where mutations may have occurred during DNA replication. Nonsister chromatids are genetically similar.

d. Sister chromatids are not genetically similar, except where mutations may have occured during DNA replication. Nonsister chromatids are genetically similar if on homologous chromosomes and genetically dissimilar if on nonhomologous chromosomes.

Answer:

b. Sister chromatids are genetically identical, except where mutations may have occurred during DNA replication. Nonsister chromatids are genetically similar if on homologous chromosomes and genetically dissimilar if on nonhomologous chromosomes.

Explanation:

A chromosome has two chromatids after the S phase of the cell cycle. The replicated DNA molecules are accommodated in the sister chromatids. Therefore, two chromatids of a chromosome carry the identical DNA molecule and are genetically identical to each other. The sister chromatids may carry different genes if one or more mutation occurs in their DNA.

Two chromatids of two different chromosomes are called non-sister chromatids. Homologous chromosomes are the chromosomes that are similar in morphology and genetic constitution. Therefore, two chromatids of a homologous pair are also non-sister chromatids but have genetically identical sequences. For example, the two non-sister chromatids of the pair of chromosome 21 in humans carry the alleles for the same genes.

However, the non-sister chromatids that belong to nonhomologous chromosomes carry different genes and are not genetically identical.

7 0

4 years ago

In which of the following biomes is annual precipitation lowest?a. tundrab. taigac. grasslandd. temperate deciduous foreste. tro

saveliy_v [14]

Answer: Option A.

Tundra

Explanation:

Tundra biome have the lowest annual precipitation because it is the coldest of all the biomes and it is plain without trees and have frost molded land scape. It have low or poor nutrients which do not support plants growth, low temperature or have the lowest temperature, little precipitation and short growing seasons.

It's annual precipitation is less than 25 centimeter annually and they are also considered as desert, after the short growing seasons, it is followed by harsh conditions which the plants and animals present there posses a special type of adaptation for survival in the area. They are found in high altitude landmass such as Canada, Russia, Alaska e.t.c.

7 0

3 years ago

Intramembranous ossification begins with differentiation of ________ cells.

PIT_PIT [208]

Answer:

Intramembranous ossification begins with differentiation of mesenchymal cells.

Explanation:

Fibrous membranes are involved in the development of the bones. The process through which this occurs is termed as the intramembranous ossification.

The cells of the mesenchyma begin to split. These cells differentiate into specialized cells each performing different functions. The following bones are formed by the process of intramembranous ossification:

mandible
clavicle
some bones of the skull

8 0

4 years ago

helpppp please ecosystem between 1975 and 1976 after which time rapiddeforestation and logging took place. Starting in 1979 the

Neporo4naja [7]

Since the population of finches had decreased when deforestation and logging started, and it returned to its original values prior to deforestation when locals started to replating trees, it follows from these facts that trees are being a limiting factor in finches' populations, either because they're acting as niches, food, both or anything else that these populations needed to survive.

Therefore, the correct answer to this question is option D.

8 0

2 years ago