Q: What is the final stage of aerobic respiration? Read this paragraph and choose the correct option from the provided answers: Electron transport is the final stage of aerobic respiration. In this stage, energy from NADH and FADH 2 is transferred to ATP. Choices: - electron production - proton transport - glucose transport - electron transport A:
electron transport

(Question)
Q: Phytochromes regulate many plant responses to what? Read this paragraph and choose the correct option from the provided answers: Choices: - heat - gravity - oxygen - light A:
(Answer)
light

Ques: Q: What type of protein is a protein molecule that is attached to, or associated with the membrane of a cell or an organelle? Read this paragraph and choose the correct option from the provided answers: The second main component of plasma membranes are the variety of proteins. A membrane protein is a protein molecule that is attached to, or associated with the membrane of a cell or an organelle. Membrane proteins can be put into two groups based on how the protein is associated with the membrane: (1) integral membrane proteins and (2) peripheral membrane proteins. Choices: - amino acid - rod protein - conduction protein - membrane protein A:
Ans: membrane protein

(Q).
Q: Positive charge is mostly found in what part of an atom? Read this paragraph and choose the correct option from the provided answers: Rutherford's discoveries meant that Thomson's plum pudding model was incorrect. Positive charge is not spread evenly throughout an atom. Instead, it is all concentrated in the tiny nucleus. The rest of the atom is empty space except for the electrons scattered through it. In Rutherford's model of the atom, which is shown in the Figure below , the electrons move around the massive nucleus like planets orbiting the sun. That's why his model is called the planetary model. Rutherford didn't know exactly where or how electrons orbit the nucleus. That research would be undertaken by later scientists, beginning with Niels Bohr in 1913. New and improved atomic models would also be developed. Nonetheless, Rutherford's model is still often used to represent the atom. You can see an animated version of the model at this URL: http://www. clickandlearn. org/gr9_sci/atoms/modelsoftheatom. html . Choices: - electron shell - neutrons - ions - nucleus A:
(A).
nucleus

Ques:Q: What is a mutation? Read this paragraph and choose the correct option from the provided answers: 28.7 Patterns of Inheritance There are two aspects to a person's genetic makeup. Their genotype refers to the genetic makeup of the chromosomes found in all their cells and the alleles that are passed down from their parents. Their phenotype is the expression of that genotype, based on the interaction of the paired alleles, as well as how environmental conditions affect that expression. Working with pea plants, Mendel discovered that the factors that account for different traits in parents are discretely transmitted to offspring in pairs, one from each parent. He articulated the principles of random segregation and independent assortment to account for the inheritance patterns he observed. Mendel's factors are genes, with differing variants being referred to as alleles and those alleles being dominant or recessive in expression. Each parent passes one allele for every gene on to offspring, and offspring are equally likely to inherit any combination of allele pairs. When Mendel crossed heterozygous individuals, he repeatedly found a 3:1 dominantrecessive ratio. He correctly postulated that the expression of the recessive trait was masked in heterozygotes but would resurface in their offspring in a predictable manner. Human genetics focuses on identifying different alleles and understanding how they express themselves. Medical researchers are especially interested in the identification of inheritance patterns for genetic disorders, which provides the means to estimate the risk that a given couple's offspring will inherit a genetic disease or disorder. Patterns of inheritance in humans include autosomal dominance and recessiveness, X-linked dominance and recessiveness, incomplete dominance, codominance, and lethality. A change in the nucleotide sequence of DNA, which may or may not manifest in a phenotype, is called a mutation. Choices: - change in the distinct sequence of dna - change in the swetha sequence of dna - change in the rna sequence of dna - change in the nucleotide sequence of dna A:

Ans:change in the nucleotide sequence of dna

Q: At what time of life does menopause occur? Read this paragraph and choose the correct option from the provided answers: The menstrual cycle includes events that take place in the ovary, such as ovulation. It also includes changes in the uterus, including menstruation. Menopause occurs when menstruation stops occurring, usually in middle adulthood. Choices: - old age - young adulthood - adolescence - in middle adulthood A:
in middle adulthood